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: Which category has the lowest joint relative frequency? Show all work. (4 points)

Answers

Answer 1

A: 16.09 %  of the survey respondents liked neither hamburgers nor burritos

B) 0.65  is the marginal relative frequency.

C) The lowest joint relative frequency of those who like Hamburgers but not burritos.

What is Marginal Frequency?

The ratio of a row total's or column total's frequency to the overall frequency of the data is known as marginal relative frequency. It is frequently used to examine broad trends in a single type of data.

   

Given:

                          Like Hamburgers    Does Not Like Hamburgers    Total

Likes burritos                  39                           38                                   77

Does not like burritos     95                           33                                 128

Total                                 134                           71                                 205

A) There are 33 such respondents.  

So, percentage is

= 33/205 x 100

= 16.095

B) It will be the ratio of the sum of the customers that like hamburgers to the total number of respondents

So, the ratio is

= 134/205

= 0.65 :1

Part C:  For this, we need to find the ratio of all the four data with the total.

Those who like Hamburgers and burritos

= 39/134

Those who like Hamburgers but not burritos

= 95/134

Those who like burritos but not Hamburgers

=38/71

Those who do not like burritos or Hamburgers = 33/71

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Related Questions

Here is a simple probability model for multiple-choice tests. Suppose that each student has probability p of correctly answering a question chosen at random from a universe of possible questions. (A strong student has a higher p than a weak student.) The correctness of an answer to a question is independent of the correctness of answers to other questions. Jodi is a good student for whom p = 0.81.

Required:
a. Use the Normal approximation to find the probability that Jodi scores 77% or lower on a 100-question test.
b. If the test contains 250 questions, what is the probability that Jodi will score 77% or lower?
c. How many questions must the test contain in order to reduce the standard deviation of Jodi's proportion of correct answers to half its value for a 100-item test?
d. Laura is a weaker student for whom p = 0.76. Does the answer you gave in (c) for standard deviation of Jodi's score apply to Laura's standard deviation also?

Answers

Answer:

a) 0.8461 = 84.61% probability that Jodi scores 77% or lower on a 100-question test.

b) 0.9463 = 94.63% probability that Jodi will score 77% or lower.

c) 400 questions.

d) Yes, because the formula is the same, independently of the value of p.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

In this question:

[tex]p = 0.81[/tex]

Question a:

100 questions means that [tex]n = 100[/tex]

For the approximation, we have that:

[tex]\mu = p = 0.81[/tex]

[tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.81*0.19}{100}} = 0.0392[/tex]

This probability is the pvalue of Z when X = 0.77. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0.77 - 0.81}{0.0392}[/tex]

[tex]Z = 1.02[/tex]

[tex]Z = 1.02[/tex] has a pvalue of 0.8461

0.8461 = 84.61% probability that Jodi scores 77% or lower on a 100-question test.

Question b:

Now [tex]n = 250[/tex], so:

[tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.81*0.19}{250}} = 0.0248[/tex]

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0.77 - 0.81}{0.0248}[/tex]

[tex]Z = 1.61[/tex]

[tex]Z = 1.61[/tex] has a pvalue of 0.9463

0.9463 = 94.63% probability that Jodi will score 77% or lower.

Question c:

The formula for the standard deviation is:

[tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

Meaning that it is inversely proportional to the square root of the sample size.

So, to reduce the standard deviation by half, the number of question must be multiplied by (2)^2 = 4.

100*4 = 400

So 400 questions.

d. Laura is a weaker student for whom p = 0.76. Does the answer you gave in (c) for standard deviation of Jodi's score apply to Laura's standard deviation also?

Yes, because the formula is the same, independently of the value of p.

The length of a park bench is 1.5 meters. What is the length of the bench in millimeters? ​

Answers

Answer:

1500 millimeters

Step-by-step explanation:

1 meter = 1000 millimeters

1.5 meters = 1500 millimeters

Samuel makes a dozen of mini cupcakes using 5/8 ​ cups of sugar, 3 cups of chocolate chips and 1/2 cup of butter. If each cupcake has an equal amount of sugar, how much sugar is used per cupcake?

Answers

I don't what form of measurement to use (like grams, cusp, etc.) but I'm pretty sure it'd be cups

I think it's 5/96 or .05208333

So, 5/8 is .625. Dividing that up in throwing it into 12 cupcakes.

Solve for the unknown values.

Answers

Answer:

y=45° x=81°

Step-by-step explanation:

the 2 angles across the outside angles sum up to the given number so just subtract 95-50= 45, with that we know subtract from the total sum of every triangle which is 180. So we add the 2 angles we have now, 50+45=99. Now we subtract, 180-99= 81.

(4-i)(2+5i) simplify

Answers

Answer:  13+18i

Step-by-step explanation:

(4-i)(2+5i)

8+20i-2i-5(i)^2

as we know that  i^2=-1

8+18i-5(-1)

8+18i+5

13+18i

What is the area of this

Answers

Answer:

24

Step-by-step explanation:

Its just  1/2 6x8=24.

its like 6x8=48 and half of it is 24

please help me with the answer u am behind a lot of work trying to avoid 0

Answers

Answer:

-3,4

Step-by-step explanation:

just follow up the other coordinates

solve the rational equation 8-6/x=5+12/x

Answers

Answer:

X = 6

Step-by-step explanation:

IXL question!!!! :geometry-tangent lines
pls help question in the pic

Answers

Answer:

Step-by-step explanation:

x-2=24          x=26

what is 81 divided by 9​

Answers

Answer:

9

Step-by-step explanation:

9

9x9 = 81

Therefore, 81 ÷ 9 is 9

Find all missing angles in the diagram

Answers

Angle 3 is 95, angle 2 and 4 is 85, angle 1 is 15, angle 7 144, angle 5 and 6 are 36

Robert bought some plants for his garden. Each plant costs $3.75.
If he spent a total of $52.50, how many plants did he buy?
Show your thinking.

Answers

He bought 14 plants
$52.50 divided by 3.75 equals 14 plants
14 x 3.75= 52.5

PLEASE HELP FAST I WILL GIVE YOU 25 POINT

Answers

Answer:

The answer is D

Step-by-step explanation:

Since there are a total of 30 chips and 10 yellow ones, you have to divide then convert them into a fraction.

10/30 = 1/3

2/3 because you divide what’s in the yellow section.

If you add 3 groups of 10 to 100, what is the total? How do you know?

Answers

Answer:

130

Step-by-step explanation:

3*10 =30+100=130

130 bc it’s bc bro I hope this helps

Peter had 6 crayons. Mike gave Peter some more crayons. Then Peter had
13 crayons in all. How many crayons did Mike give Peter?
What type of problem is this, add to/take from: put together/take apart,
or compare? Type your response here.
Solve the problem in the space below.

Answers

Answer:

7

Step-by-step explanation:

13-6=7 compare maybe.....

Which table represents the statement "A car is traveling at a rate of 60 miles per hour"?

Answers

Answer:

B

Step-by-step explanation:

because if the car is traveling at 60 mph, the distance traveled would be 60 x the number of hours

Answer:

b

Step-by-step explanation:

I took the exam hopes this helps

if an inheritance was shared among 72000 to the beneficiaries there were 3 children Ban , Michel and Bob in the ratio of 1:3:4 .how much will each get​

Answers

Answer:

Ban has 9,000

Michel has 27,000

Bob has 36,000

Step-by-step explanation:

BA: MI: BO

1: 3: 4 (1+3+4 = total number)

BA:  [tex]\frac{1}{8}[/tex] of 72,000 (72,000 ÷ 8 x 1) = 9,000

MI: [tex]\frac{3}{8}[/tex] of 72,000 (72,000 ÷ 8 x 3) = 27,000

BO: [tex]\frac{4}{8}[/tex] of 72,000 (72,000 ÷ 8 x 4) = 36,000

Choose the expression that best represents the phrase below.
... the product of the width and the height...
A. Wh
B. w-h
C. W + h
D. h w
E. W:h
F. h-w

Answers

Answer:

option E is your correct answer

mark as brainliest

2. The area of the bottom of a shoe box is 28 square inches. If the
height of the shoe box is 3 inches, what is the volume the box

Answers

Answer:

Echo stop DELeting MY Stuff

Step-by-step explanation:

PLEASE HELP FAST!!!!!

Answers

Answer:

120 feet is the answer

120 feet Is what you were looking for

Calculate the volume of a square-based pyramid with a slant height of 5 ft and base edges of 6 ft.

Answers

Answer:

Volume is 60ft³

Step-by-step explanation:

b²h/3

b=6

h=5

The volume of a square-based pyramid will be 180 ft³. Option D is correct.

How to find the volume of a prism?

If the prism is such that if we slice it horizontally at any height smaller or equal to its original height, the cross-section is the same as its base, then its volume is:

[tex]\rm V = B^2 \times h \\\ V = 6^2 ft \times 5 \ ft \\\ V=180 \ ft^2[/tex]

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Solve each proportion 3/39= y/13

Answers

Answer:

[tex]y = 1[/tex]

Step-by-step explanation:

[tex] \frac{3}{39} = \frac{y}{13} [/tex]

Cross multiply

[tex]39 = 39y[/tex]

Divide by 39

[tex]y = 1[/tex]

Answer:

[tex]\boxed {\boxed {\sf y=1}}[/tex]

Step-by-step explanation:

To solve the proportion, we must solve for the variable. This is done by isolating the variable.

[tex]\frac {3}{39}= \frac {y}{13}[/tex]

The variable, y, is being divided by 13. The inverse of division is multiplication. Multiply both sides of the proportion by 13.

[tex]13*\frac {3}{39}= \frac {y}{13}*13[/tex]

[tex]13*\frac {3}{39}=y\\1=y[/tex]

Another way to solve is by cross multiplying. Multiply the 1st numerator by the 2nd denominator, then the 1st denominator and the 2nd numerator.

[tex]\frac {3}{39}= \frac {y}{13}[/tex]

[tex]3*13=39*y\\39=39y[/tex]

Divide both sides by 39 to isolate the variable.

[tex]39/39=39y/39 \\1=y[/tex]

In this proportion, y is equal to 1.

what is the unknown number in sequence 2​

Answers

Answer:72 Step-by-step explanation:form the table it is shown that 5 was skipped to 6 so to get term 5 we say if 48-36=12 and 36-26=12 ......in A.P series so the difference is 12 therefore the 5th term is 48+12 = 60 and 6th term is 60+12= 72

Exercise 5.16.1: Coin flips and events. About A coin is flipped four times. For each of the events described below, express the event as a set in roster notation. Each outcome is written as a string of length 4 from {H, T}, such as HHTH. Assuming the coin is a fair coin, give the probability of each event. (a) The first and last flips come up heads. Solution (b) There are at least two consecutive flips that come up heads.

Answers

Answer:

[tex](a)\ Pr = 0.25[/tex]

[tex](b)\ Pr = 0.50[/tex]

Step-by-step explanation:

Given

[tex]Flips = 4[/tex]

First, we calculate the sample size;

The coin has two possible outcomes (i.e. head or tail) and the number of flips is 4.

So, the sample size (N) is:

[tex]N = 2^4[/tex]

[tex]N = 16[/tex]

Solving (a): Probability the outcome of the first and last flip is head.

The possible outcomes for this event are:

[tex]n = \{(HHHH), (HHTH), (HTHH),(HTTH)\}[/tex]

[tex]n(n) = 4[/tex]

The probability is:

[tex]Pr = \frac{n(n)}{N}[/tex]

[tex]Pr = \frac{4}{16}[/tex]

[tex]Pr = 0.25[/tex]

 

Solving (a): Probability that the outcome of at least 2 consecutive flips is head.

The possible outcomes for this event are:

[tex]n = \{(HHHH), (HHHT),(HHTH), (HTHH),(THHH),(TTHH),(HHTT), (THHT)\}[/tex]

[tex]n(n) = 8[/tex]

The probability is:

[tex]Pr = \frac{n(n)}{N}[/tex]

[tex]Pr = \frac{8}{16}[/tex]

[tex]Pr = 0.50[/tex]


Solve 3x2 + 4x + 2 = 0 by using the Quadratic Formula. If necessary, round to the nearest hundredth.

Answers

Answer:

Step-by-step explanation:

For this equation: a=3, b=4, c=2

3x2+4x+2=0

Step 1: Use quadratic formula with a=3, b=4, c=2.

x= −b±√b2−4ac / 2a

x= −(4)±√(4)2−4(3)(2)  /  2(3)

x= −4±√−8  /  6

Answer:

No real solutions.

The quadratic equation 3x² + 4x + 2 = 0 does not have a real solution.

What are Quadratic Equations?

Quadratic equations are second degree polynomial equations which is of the form ax² + bx + c = 0, where a, b and c are integers.

Given quadratic equation is,

3x² + 4x + 2 = 0

Quadratic formula to find the solution is,

x = [-b ± [tex]\sqrt{b^2-4ac}[/tex]] /  2a, where [tex]\sqrt{b^2-4ac}[/tex] is called discriminant.

Here, a = 3, b = 4 and c = 2

Substituting,

x = [-4 ± [tex]\sqrt{4^2-(4*3*2)}[/tex]] /  (2 × 3)

  = [-4 ± √(16 - 24)] / 6

  = [-4 ± √(-8)] / 6

This has no real solution since the value inside the discriminant is negative.

Hence the quadratic equation has no real solution.

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An airplane is flying 4 miles directly over your house. The distance between your house and the airport is 12 miles. How far apart are the airplane and the airport?

Answers

Answer:

c=7.180 miles. 2. Jack is on one side of a 200-foot-wide canyon and Jill is on the other. Jack and Jill can both ... a=2.947 miles. 5. Airplane A is flying directly toward the airport which is 20 miles away. The pilot notices ...

Use the table below to answer the following questions.

Answers

Answer:

instructions??????????

help me with these 2 pleaseee

Answers

Answer:

x=6

Step-by-step explanation:

2x+6=18

2x=12

x=6

Step-by-step explanation:

2(x+3)=18

x+3=18÷2

x+3=9

x=9-3

x=6

2x+15=27-4x

2x+4x=27-15

6x=12

x=12÷6

x=2

AABC maps the outline of a new park. What is the area of the park?

Answers

Answer:

C. 10

Step-by-step explanation:

AC = 4 units

BC = 5 units

use the triangle formula

1/2 × 4 × 5 = 10

A pride of lions is growing at a rate of 0.5% per year, compounded continuously. If the growth rate continues, how large will
the pride be after 100 years if it starts with 50 lions. Round your answer to the nearest lion.
Provide your answer below:

Answers

Answer:

the answer is 52 Lions

Step-by-step explanation:

I think that's the answer if I'm wrong please tell me if I'm wrongI can ask the people who are around me.

Answer:

82

Step-by-step explanation:

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