FOR 100 POINTS!!!!!!!!!!!
A food truck did a daily survey of customers to find their food preferences. The data is partially entered in the frequency table. Complete the table to analyze the data and answer the questions:
Likes hamburgers Does not like hamburgers Total
Likes burritos 29 41
Does not like burritos 54 135
Total 110 205
Part A: What percentage of the survey respondents liked neither hamburgers nor burritos? Show all work. (3 points)
Part B: What is the marginal relative frequency of all customers who like hamburgers? Show all work. (3 points)
Part C: Is there an association between liking burritos and liking hamburgers? Use ratios of joint and marginal frequencies to support your answer. (4 points)
Answer:
Part A:
To find the percentage of survey respondents who liked neither hamburgers nor burritos, we need to calculate the frequency in the "Does not like hamburgers" and "Does not like burritos" categories.
Frequency of "Does not like hamburgers" = Total in "Does not like hamburgers" category = 135
Frequency of "Does not like burritos" = Total in "Does not like burritos" category = 54
Total respondents who liked neither hamburgers nor burritos = Frequency of "Does not like hamburgers" + Frequency of "Does not like burritos" = 135 + 54 = 189
Percentage of survey respondents who liked neither hamburgers nor burritos = (Total respondents who liked neither hamburgers nor burritos / Total respondents) x 100
Percentage = (189 / 205) x 100 = 92.2%
Therefore, 92.2% of the survey respondents liked neither hamburgers nor burritos.
Part B:
To find the marginal relative frequency of all customers who like hamburgers, we need to divide the frequency of "Likes hamburgers" by the total number of respondents.
Frequency of "Likes hamburgers" = 110 (given)
Total respondents = 205 (given)
Marginal relative frequency = Frequency of "Likes hamburgers" / Total respondents
Marginal relative frequency = 110 / 205 ≈ 0.5366 or 53.66%
Therefore, the marginal relative frequency of all customers who like hamburgers is approximately 53.66%.
Part C:
To determine if there is an association between liking burritos and liking hamburgers, we can compare the joint and marginal frequencies.
Joint frequency of "Likes hamburgers" and "Likes burritos" = 29 (given)
Marginal frequency of "Likes hamburgers" = 110 (given)
Marginal frequency of "Likes burritos" = 70 (calculated by adding the frequency of "Likes burritos" in the table)
To assess the association, we compare the ratio of the joint frequency to the product of the marginal frequencies:
Ratio = Joint frequency / (Marginal frequency of "Likes hamburgers" x Marginal frequency of "Likes burritos")
Ratio = 29 / (110 x 70)
Ratio ≈ 0.037 (rounded to three decimal places)
the price of a dekstop computer decreses from $1360 to $1020. find the percentage decrease in its price.
Part B
What did Archimedes discover in the bath? Why was he so excited? Describe the discovery using geometric terms. What do you predict Archimedes did next with his new discoveries? Explain.
Answer:
is attributed to the ancient Greek scholar Archimedes. He reportedly proclaimed "Eureka! Eureka!" after he had stepped into a bath and noticed that the water level rose, whereupon he suddenly understood that the volume of water displaced must be equal to the volume of the part of his body he had submerged.
Step-by-step explanation:
Answer:
is attributed to the ancient Greek scholar Archimedes. He reportedly proclaimed "Eureka! Eureka!" after he had stepped into a bath and noticed that the water level rose, whereupon he suddenly understood that the volume of water displaced must be equal to the volume of the part of his body he had submerged.
Step-by-step explanation:
A man gave 90000.00 to his two daughters Jane and Lydia, 75.00 was given to Lydia to pay her load. After sharing the money Lydia has twice as
much as Jane. How much did each received?
Jane received $30025 and Lydia received $60000. Let's assume the amount of money that Jane received as x; then Lydia's share of the money will be twice the share of Jane.
We are to find out the share of each person. Here is the solution in steps:Suppose Jane's share was x dollars, and Lydia's share was y dollars.
Given that the total amount given to the two daughters was $90000. Also, given that Lydia paid off her $75, hence she got $75 less than Jane.
Therefore, y = 2x - 75; this is because we are given that Lydia got twice the share of Jane, and also, she got $75 less than Jane. Hence, x + y = $90000, this is because the total sum of money shared is $90000.
Substituting y = 2x - 75 into x + y = $90000 gives x + (2x - 75) = $90000.
Simplifying, we have :3x = $90000 + 75 = $90075.
Dividing both sides by 3, we get:x = $30025. Hence, Jane's share is $30025 Lydia's share = 2x - 75 = 2($30025) - $75 = $60075 - $75 = $60000.
Therefore, Jane received $30025 and Lydia received $60000.
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If two cones have their heights in the ratio 1:3 and radii 3:1, then the ratio of their volumes is:
A.1:3
B.3:1
C.2:3
D.3:2
B. If two cones have their heights in the ratio 1:3 and radii 3:1, then the ratio of their volumes is 3:1.
This can be determined by using the formula for the volume of a cone, V = (1/3)πr^2h, where r is the radius and h is the height. Since the ratio of the height is 1:3 and the ratio of the radii is 3:1, the ratio of the volumes is 3:1.
To calculate this, we can set up two equations:
V1 = (1/3)πr1^2h1 and
V2 = (1/3)πr2^2h2.
Since the ratio of the height is 1:3, we can set h1=3h2. Substituting this into the equation for V2 and solving for V2/V1, we get
V2/V1 = (r2/r1)^2*(h2/h1).
Since the ratio of the radii is 3:1, we can set r2/r1=3. Substituting this into the equation and simplifying, we get V2/V1 = 3^2*(h2/h1), which is equal to 3^2*1/3=3, which is the same as the ratio of the radii, 3:1. Therefore, the ratio of the volumes is 3:1.
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The tables represent the points earned in each game for a season by two football teams.
Panthers
14 10 10
10 17 3
28 13 17
32 16 10
14 7 21
Cowboys
10 3 8
6 24 12
21 3 10
28 28 7
7 13 3
Which team had the best overall record for the season? Determine the best measure of center to compare and explain your answer.
Panthers; they have a larger median value of 14 points
Cowboys; they have a larger median value of 10 points
Panthers; they have a larger mean value of about 14.8 points
Cowboys; they have a larger mean value of about 12.2 points
Answer:
Therefore, the Panthers had a better overall record for the season, with a total of 212 points earned compared to the Cowboys' total of 173 points.
Step-by-step explanation:
To compare the measures of center, we can calculate the mean and median points earned by each team:
Panthers: Mean = 212/15 = 14.13 points, Median = 14 points
Cowboys: Mean = 173/15 = 11.53 points, Median = 10 points
Based on these calculations, we can see that the Panthers have a larger mean value of about 14.13 points compared to the Cowboys' mean value of about 11.53 points. However, the median value for both teams is less useful for comparison since they are only one point apart. Therefore, we can conclude that the Panthers had the better overall record for the season based on both the total points earned and their larger mean value.
So, the answer is Panthers; they have a larger mean value of about 14.8 points (Option C is incorrect as the mean value of Panthers is approximately 14.13 and not 14.8).
true/false. an experiment was run to compare four groups. the standard deviations were 4974, 6585, 3288, 5488. in this case, it is reasonable to assume all groups have equal variances.
False. It is not reasonable to assume all groups have equal variances in this case.
The standard deviation is a measure of variability or spread of the data. If the standard deviations of different groups are significantly different, then it suggests that the spread of the data within each group is also different. When comparing multiple groups, equal variances are typically assumed so that a valid statistical test can be performed.
If the variances are unequal, then a different type of test, such as Welch's ANOVA, should be used. In this case, the large difference in the standard deviations of the four groups (4974, 6585, 3288, 5488) suggests that it is not reasonable to assume equal variances and a different test should be used.
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I don’t understand these problems
Both E and F are sets.
E = {w | w ≤ 2}
means that E is the set of all numbers w satisfying the condition that w ≤ 2. In other words, E contains all real numbers less than and including 2.
Similarly,
F = {w | w > 9}
is the set of all real numbers strictly greater than 9.
The intersection of E and F, denoted E ∩ F, is the set that contains the overlap of the two sets, or all the numbers that are common to both sets. In this case, E ∩ F is the empty set; this is because all numbers small than 2 cannot be larger than 9, so E ∩ F = ∅.
The union of E and F, written as E ∪ F, is the set containing all elements from both sets. In interval notation, E = (-∞, 2] and F = (9, ∞), so E ∪ F = (-∞, 2] ∪ (9, ∞).
Find the 22nd term. 3, 7.5, 12, 16.5
Answer:
either or super sore
Step-by-step explanation:
In each blank below a single digit is inserted such that the following six three-digit numbers, in this order, form an arithmetic sequence: 1_ _, _ _ 9, 2 _ 2, _ 6 _, 2 _ _, _ 3 _What is the value of the next number in the sequence?
The series appears to be 166, 199, 232, 265, 298, 331
With examples, define sequence?
A list of numbers in a certain order is known as a sequence. A term is the name given to each number in a sequence.
In a series, each term has a place (first, second, third and so on). Take the sequence 5, 15, 25, 35, as an example. Each number is referred to as a word in the sequence.
The last number of the common difference must end in 3
And this must be a 2 digit number
So....the first number must end in 6
The the 4th number must be 265
So..... the 5th number must end in 8
And the last digit of the last term must end in 1 [ and begin with 3 ]
Putting all this together we have that
265 + 2d = 331
2d = 66 ⇒ d = 33
So the first term must be 265 - 3 (66) = 166
the series appears to be 166, 199, 232, 265, 298, 331
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Someone needs to hear this. So here it is. God will pull you through. You just need to have faith. You just have to keep going. Do not give up. Things will get better. What is important to you is important to the lord. So pray and He will listen.
Answer: thank you
Step-by-step explanation:
Answer:
Thanks!
Step-by-step explanation:
work out the circumferrence of this circle 14cm diameter give your answer in terms of pi and state its units
Answer:
Step-by-step explanation:
The circumference of a circle is given by the formula:
C = πd
where d is the diameter of the circle. In this case, the diameter is given as 14 cm, so we can substitute that into the formula:
C = π(14 cm)
Multiplying, we get:
C = 14π cm
So the circumference of the circle is 14π cm. The units are centimeters, since circumference is a length measurement.
Please answer as soon as possible HURRY! Please I need help
2. Write a Linear equation for the function represented by the table
Step-by-step explanation:
I will help you if you follow me please if you really want to get answer please follow me
pls help me i’ll give ty brainlist
\(\sqrt{25*7x^{4}*x^{1} } \\=\sqrt{25*x^{4}*7 *x^{1} } \\=\sqrt{25x^{4} } *\sqrt{7x}\\=5x^{2} \sqrt{7x}\)
Option B is the answer.
Answer: C
i hope you can see my handwriting
what is the most effluence first step to isolate the variable term on one side of this equation -9x=-4x+5
Get me right twinnnn
Answer:
\( \frac{9x { }^{2 } - 63x}{ 3x} \\ = \frac{3x(3x - 21)}{3x} \\ = 3x - 21 \)
hope it helps:)
Answer:3x-21
Step-by-step explanation:
\(\frac{9x^{2} - 63x }{3x}\) ⇒ \(\frac{3x * (3x - 21) }{3x}\) ⇒ cancel out 3x ⇒ 3x - 21
Triangle DEF has vertices D(1,1), E(2,0), and F(0,4). It is transformed by a rotation 180 degrees about the origin followed by a dilation with a scale factor of 3. Find the coordinates of the vertices of triangle D”E”F”.
Check the picture below.
Lavage Rapide is a Canadian company that owns and operates a large automatic car wash facility near Montreal. The following table provides estimates concerning the company’s costs:
Fixed Cost per Month Cost per Car Washed
Cleaning supplies $ 0.80
Electricity $ 1,400 $ 0.08
Maintenance $ 0.20
Wages and salaries $ 4,700 $ 0.40
Depreciation $ 8,000
Rent $ 2,100
Administrative expenses $ 1,400 $ 0.05
Lavage Rapide's total cost per car washed is $19.05.
What is equation?An equation in mathematics is a statement that states the equality of two expressions. An equation is made up of two sides that are separated by an algebraic equation (=). For example, the argument "2x + 3 = 9" asserts that the phrase "2x Plus 3" equals the value "9." The purpose of equation solving is to determine the value or values of the variable(s) that will allow the equation to be true. Equations can be simple or complicated, regular or nonlinear, and include one or more elements. The variable x is raised to the second power in the equation "x2 + 2x - 3 = 0." Lines are utilised in many different areas of mathematics, such as algebra, calculus, and geometry.
Fixed costs are expenses that do not change based on the number of units produced or sold. Variable costs, on the other hand, change with the level of production or sales. Here, the fixed costs are cleaning supplies, electricity, maintenance, wages and salaries, depreciation, rent, and administrative expenses.
The variable cost is the cost per car washed, which includes wages and salaries and administrative expenses.
To calculate the total cost per car washed, we need to add fixed costs to the variable cost per car. So, the total cost per car washed for Lavage Rapide would be:
Total Cost per Car Washed = Fixed Costs + Variable Cost per Car Washed
Total Cost per Car Washed =\(($0.80 + $1,400 + $0.20 + $4,700 + $8,000 + $2,100 + $1,400) + ($0.40 + $0.05)\)
Total Cost per Car Washed = $18,620 + $0.45
Total Cost per Car Washed = $19.05
Therefore, Lavage Rapide's total cost per car washed is $19.05.
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complete question:
Fixed Cost per Month Cost per Car Washed
Cleaning supplies $ 0.80
Electricity $ 1,400 $ 0.08
Maintenance $ 0.20
Wages and salaries $ 4,700 $ 0.40
Depreciation $ 8,000
Rent $ 2,100
Administrative expenses $ 1,400 $ 0.05
A distribution center is redesigning two of its shipping boxes. The volume of these two boxes need
shown
4x
x + 1
x + 2
Х
3x - 1
4x
Write a system of equations to represent the volume of each box, y. Which statement describes the number and viability of the system's
solutions?
ОА
The system has two solutions, and both are viable because they result in positive side lengths.
Ов,
The system has two solutions, but only one is viable because the other results in negative side lengths.
The system has only one solution, and it is viable because it results in positive side lengths.
Ос.
OD
The system has only one solution, but it is not viable because it results in negative side lengths.
Answer:
ОА
The system has two solutions, and both are viable because they result in positive side lengths.
Step-by-step explanation:
4. Find the length of AB, given that DB is a median of
the triangle and AC = 40.
Answer: AB=12 because medians bisect the opposing side of a vertex.
Given:-
DB is a median of the triangle.AC = 40Solution:-
AC = AB + BCDB divides AC into two equal parts.
\( \sf{AB = BC}\)\( \: \)
\( \sf{AC = 2AB}\)\( \: \)
\( \sf{40 = 2AB}\)\( \: \)
\( \sf{AB = \frac{40}{2} }\)\( \: \)
\(\sf{AB = \cancel\frac{40}{2} }\)\( \: \)
\( \underline{ \boxed{ \red{\sf{AB = 20}}}}\)\( \: \)
Therefore, the length of AB is 20units.
\( \: \)
hope it helps!:)
What is the arc length of a segment of a circle with a central angle of 165° and a radius of 3 inches?
Answer:
11π/4 (radians) or 495° (degrees)
Step-by-step explanation:
Convert 165° to radians:
165 * π/180 = 165π/180 = 11π/12
s = r/Ф
arc length = 3(11π/12) = 33π/12 = 11π/4
Convert back to degrees if asked to:
11π/4 * 180/π = 495° (Note that this is 165° * 3, see the pattern?)
You put $500 in a savings account. The account earns $20 simple interest in 6 months. What is the annual interest rate? Write your answer as a percent
Answer:
8%
Step-by-step explanation:
For simple interest, we use the equation I = PRT, where I is the interest earned, P is the principal/amount invested, R is the rate as a decimal, not percentage, and T is the time in years.
For this problem, we have to use 0.5 for T, because 6 months is 1/2 a year.
20 = (500)(r)(0.5)
20 = 250r
r = 0.08 = 8%
PLEASE HELP
how many solutions does this equation have? 12+2x-8=7x+5-5x
Answer:
no solution
Step-by-step explanation:
STEP 1: Since x is on the right side of the equation, switch the sides so it is on the left side of the equation.
\(7x+5-5x=12+2x-8\)
STEP 2: Subtract 5x from 7x.
\(2x+5=12+2x-8\)
STEP 3: Subtract 8 from 12.
\(2x+5=2x+4\)
STEP 4: Move all terms containing x to the left side of the equation.
\(5=4\)
STEP 5: Since 5≠4, there are no solutions.
No solution
A hexagon forms a semi-regular tessellation with which of the following
regular polygons?
A. Square and equilateral triangle
B. Dodecagon and equilateral triangle
C. Trapezoid and pentagon
D. Trapezoid and octagon
Answer:
A.
Step-by-step explanation:
The time, t (in minutes), you need to type acertain paper varies inversely with the rate, r(in words per minute), that you can type.When typing 40 words per minute, you canfinish in 50 minutes. Find the constant ofproportionality and write an equationrelating t and r.?]t =
In order to find the constant of proportionality between t and r, as they are inversely proportional, we just need to multiply their values.
When typing 40 words per minute (that is, r = 40), you can finish in 50 minutes (that is, t = 50). So the constant is:
\(40\cdot50=2000\)Now, to write an equation relating t and r, we use this variables in the product above, and make their product equal the constant we found. Then, we isolate the variable t:
\(\begin{gathered} t\cdot r=2000 \\ t=\frac{2000}{r} \end{gathered}\)Edgar accumulated $5000 in credit card debt if the interest rate is 50% per year and he does not have to make any payments for five years how much will he go on his debt in five years by compounding continuously.
Answer:
$ 60 912.46 owed in five years
Step-by-step explanation:
FIFTY percent <====== crazy ! This is .5 in decimal form
FV = Future Value = PV e^(i*t)
PV = present value i = interest in decimal form t = years
5000 e^(.5 * 5 ) = 60912.46
what is 6/5 in simplest radical form?
Two rectangle are similar, the first 4 in wide and 15 in long. The second is 19 in. Wide. Find the length of the second rectangle?
Answer:
the length of the second rectangle is 33.75 in
Step-by-step explanation:
The computation of the length of the second rectangle is as follows
Let us assume the length of the second triangle be x
Now
The equation would be
4 ÷ 15 = 9 ÷ x
Now do the cross multiplication
4x = 15 × 9
4x = 135
x = 33.75 in
Hence, the length of the second rectangle is 33.75 in
helpppppppppppppppppppppppppppp
Answer: 9+3z<-12
Step-by-step explanation: because first -3(2-z)= -6+3z
then 15-6=9
so then it is 9+3z for the left side and we didn't touch the right side so it would be the same
Eugene and Jessica each improved their yards by planting hostas and geraniums. They bought
their supplies from the same store. Eugene spent $150 on 18 hostas and 6 geraniums. Jessica
spent $113 on 7 hostas and 16 geraniums. Find the cost of one hosta and the cost of one
geranium.
The cost of one hosta is approximately $7 and the cost of one geranium is approximately $4.
To find the cost of one hosta and one geranium, we can set up a system of equations based on the given information.
Let's assume the cost of one hosta is represented by 'h' and the cost of one geranium is represented by 'g'.
From the information given, we can set up the following equations:
Eugene's spending:
18h + 6g = $150
Jessica's spending:
7h + 16g = $113
We can now solve this system of equations to find the values of 'h' and 'g'.
Multiplying the first equation by 2 and the second equation by 3 to eliminate 'g', we get:
36h + 12g = $300
21h + 48g = $339
Now, we can subtract the second equation from the first to eliminate 'h':
(36h + 12g) - (21h + 48g) = $300 - $339
36h - 21h + 12g - 48g = -$39
15h - 36g = -$39
Simplifying further, we have:
15h - 36g = -$39
Now we can solve this equation for 'h' and substitute the value back into any of the original equations to find 'g'.
Let's solve for 'h':
15h = 36g - $39
h = (36g - $39) / 15
Substituting this value of 'h' into Eugene's equation:
18[(36g - $39) / 15] + 6g = $150
(648g - $702) / 15 + 6g = $150
648g - $702 + 90g = $150 * 15
738g - $702 = $2250
738g = $2250 + $702
738g = $2952
g = $2952 / 738
g ≈ $4
Now, substituting the value of 'g' back into Eugene's equation:
18h + 6($4) = $150
18h + $24 = $150
18h = $150 - $24
18h = $126
h = $126 / 18
h ≈ $7
Therefore, the cost of one hosta is approximately $7 and the cost of one geranium is approximately $4.
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