Data Set 1C Suppose that the following table represents the age of the houses in a certain neighborhood: \(\begin{array} { l | l } \text { Number of } & \\ \text { Houses } & \text { Age } \\ \hline 2 & 1 \\ 5 & 3 \\ 1 & 4 \\ 3 & 6 \\ 4 & 9 \end{array}\) -Given Data Set 1C, what is the median age of the houses?

A) 3 years. B) 5.4 years. C) 5 years. D) 4 years. E) 4.6 years. A) 3 years. B) 5.4 years. C) 5 years. D) 4 years. E) 4.6 years.

Data Set 1A Suppose that the following table represents the length of service (in years) of the employees of a business: \[\begin{array} { l | l } \text { Number of } \\ \text { Employees } & \text { Years } \\ \hline 1 & 1 \\ 6 & 2 \\ 1 & 3 \\ 3 & 4 \\ 4 & 5 \end{array}\] -Given Data Set 1A, what is the mean length of service of the employees?

A) 3 years. B) 2.5 years. C) 3.2 years. D) 4 years. E) 3.5 years. A) 3 years. B) 2.5 years. C) 3.2 years. D) 4 years. E) 3.5 years.

Data Set 1C Suppose that the following table represents the age of the houses in a certain neighborhood: \(\begin{array} { l | l } \text { Number of } & \\ \text { Houses } & \text { Age } \\ \hline 2 & 1 \\ 5 & 3 \\ 1 & 4 \\ 3 & 6 \\ 4 & 9 \end{array}\) -Given Data Set 1C, what is the mean age of the houses?

A) 3 years. B) 4.6 years. C) 5 years. D) 4 years. E) 5.7 years. A) 3 years. B) 4.6 years. C) 5 years. D) 4 years. E) 5.7 years.

Data Set 1B Suppose that the following table represents the age of the cars in a small used car lot: \[\begin{array} { l | l } \text { Number of } & \\ \text { Cars } & \text { Age } \\ \hline 2 & 1 \\ 4 & 2 \\ 1 & 3 \\ 5 & 4 \\ 1 & 6 \end{array}\] -Given Data Set 1B, what is the modal age of the cars?

A) 5 years. B) 4 years. C) 6 years. D) 3 years. E) 3.5 years. A) 5 years. B) 4 years. C) 6 years. D) 3 years. E) 3.5 years.

Data Set 1B Suppose that the following table represents the age of the cars in a small used car lot: \[\begin{array} { l | l } \text { Number of } & \\ \text { Cars } & \text { Age } \\ \hline 2 & 1 \\ 4 & 2 \\ 1 & 3 \\ 5 & 4 \\ 1 & 6 \end{array}\] -Given Data Set 1B, what is the median age of the cars?

A) 4 years. B) 3.5 years. C) 5 years. D) 3 years. E) 6 years. A) 4 years. B) 3.5 years. C) 5 years. D) 3 years. E) 6 years.

Exam 12: Statistical Reasoning

Data Set 2C Suppose that the lengths of employment (in years) of 7 employees of a small company are as follows: 1, 2, 2, 3, 4, 4, 5 -For Data Set 2C, what is the approximate standard deviation?

(Multiple Choice)

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Question 21

Data Set 2B Suppose that the height (in meters) of 6 fir trees in the garden department of a store are as follows: 1, 2, 2, 4, 4, 5 -For Data Set 2B, what is the standard deviation?

(Multiple Choice)

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Question 22

Data Set 1C Suppose that the following table represents the age of the houses in a certain neighborhood: Number of Houses Age 2 1 5 3 1 4 3 6 4 9 -Given Data Set 1C, what is the median age of the houses?

(Multiple Choice)

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Question 23

Suppose that the price of crude oil, the primary raw material for gasoline, increases by 30 percent. Assuming everything else stays the same, by how much has the cost of producing gasoline increased?

(Multiple Choice)

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Question 24

Range, variance, and standard deviation are measurements of:

(Multiple Choice)

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Question 25

Data Set 1A Suppose that the following table represents the length of service (in years) of the employees of a business: Number of Employees Years 1 1 6 2 1 3 3 4 4 5 -Given Data Set 1A, what is the mean length of service of the employees?

(Multiple Choice)

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Question 26

Suppose a quality control inspector pulls every tenth can of soup from a conveyor belt to ensure that the cans are filled to capacity. How should this procedure be evaluated?

(Multiple Choice)

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Question 27

Data Set 1C Suppose that the following table represents the age of the houses in a certain neighborhood: Number of Houses Age 2 1 5 3 1 4 3 6 4 9 -Given Data Set 1C, what is the mean age of the houses?

(Multiple Choice)

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Question 28

Suppose two simultaneous random surveys were taken of a mid sized city to determine public acceptance of a proposed ballot measure. Survey X covered 1000 voters, and Survey Y covered 2000 voters. How would you expect the surveys to compare for accuracy?

(Multiple Choice)

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Question 29

Data Set 2A Suppose that the ages of 8 kittens in a pet shop are as follows: 1, 2, 2, 3, 3, 4, 4, 5 -What is the variance for Data Set 2A?

(Multiple Choice)

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Question 30

In a normal distribution, the data represented are:

(Multiple Choice)

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Question 31

In a poll about creating a publicly funded healthcare program, suppose the question is asked, "Should free healthcare be given to people who are too lazy to work and who have never paid any taxes?" Can the answers to this question be trusted?

(Multiple Choice)

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Question 32

Data Set 1B Suppose that the following table represents the age of the cars in a small used car lot: Number of Cars Age 2 1 4 2 1 3 5 4 1 6 -Given Data Set 1B, what is the modal age of the cars?

(Multiple Choice)

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Question 33

One of the problems with the Literary Digest poll taken prior to the 1936 presidential election was:

(Multiple Choice)

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Question 34

Data Set 2B Suppose that the height (in meters) of 6 fir trees in the garden department of a store are as follows: 1, 2, 2, 4, 4, 5 -What is the variance for Data Set 2B?

(Multiple Choice)

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Question 35

Data Set 1B Suppose that the following table represents the age of the cars in a small used car lot: Number of Cars Age 2 1 4 2 1 3 5 4 1 6 -Given Data Set 1B, what is the median age of the cars?

(Multiple Choice)

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Question 36

Suppose that a survey is taken of the adult residents of a town, and one of the questions asked is whether the person responding graduated from high school. Can the responses to this question be trusted?

(Multiple Choice)

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Question 37

A sample that is not representative of the population from which it is drawn is said to be:

(Multiple Choice)

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Question 38

One way of exaggerating the apparent message conveyed by a bar graph is by:

(Multiple Choice)

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Question 39

Suppose that a biologist took water samples at random intervals from a rapidly flowing creek to test for contaminants. A sample was taken at a single location from the center of the creek for one year. Could such a survey be depended on?

(Multiple Choice)

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Question 40

Data Set 2C Suppose that the lengths of employment (in years) of 7 employees of a small company are as follows: 1, 2, 2, 3, 4, 4, 5 -For Data Set 2C, what is the approximate standard deviation?

Data Set 2B Suppose that the height (in meters) of 6 fir trees in the garden department of a store are as follows: 1, 2, 2, 4, 4, 5 -For Data Set 2B, what is the standard deviation?

Data Set 1C Suppose that the following table represents the age of the houses in a certain neighborhood: Number of Houses Age 2 1 5 3 1 4 3 6 4 9 -Given Data Set 1C, what is the median age of the houses?

Suppose that the price of crude oil, the primary raw material for gasoline, increases by 30 percent. Assuming everything else stays the same, by how much has the cost of producing gasoline increased?

Range, variance, and standard deviation are measurements of:

Data Set 1A Suppose that the following table represents the length of service (in years) of the employees of a business: Number of Employees Years 1 1 6 2 1 3 3 4 4 5 -Given Data Set 1A, what is the mean length of service of the employees?

Suppose a quality control inspector pulls every tenth can of soup from a conveyor belt to ensure that the cans are filled to capacity. How should this procedure be evaluated?

Data Set 1C Suppose that the following table represents the age of the houses in a certain neighborhood: Number of Houses Age 2 1 5 3 1 4 3 6 4 9 -Given Data Set 1C, what is the mean age of the houses?

Suppose two simultaneous random surveys were taken of a mid sized city to determine public acceptance of a proposed ballot measure. Survey X covered 1000 voters, and Survey Y covered 2000 voters. How would you expect the surveys to compare for accuracy?

Data Set 2A Suppose that the ages of 8 kittens in a pet shop are as follows: 1, 2, 2, 3, 3, 4, 4, 5 -What is the variance for Data Set 2A?

In a normal distribution, the data represented are:

In a poll about creating a publicly funded healthcare program, suppose the question is asked, "Should free healthcare be given to people who are too lazy to work and who have never paid any taxes?" Can the answers to this question be trusted?

Data Set 1B Suppose that the following table represents the age of the cars in a small used car lot: Number of Cars Age 2 1 4 2 1 3 5 4 1 6 -Given Data Set 1B, what is the modal age of the cars?

One of the problems with the Literary Digest poll taken prior to the 1936 presidential election was:

Data Set 2B Suppose that the height (in meters) of 6 fir trees in the garden department of a store are as follows: 1, 2, 2, 4, 4, 5 -What is the variance for Data Set 2B?

Data Set 1B Suppose that the following table represents the age of the cars in a small used car lot: Number of Cars Age 2 1 4 2 1 3 5 4 1 6 -Given Data Set 1B, what is the median age of the cars?

Suppose that a survey is taken of the adult residents of a town, and one of the questions asked is whether the person responding graduated from high school. Can the responses to this question be trusted?

A sample that is not representative of the population from which it is drawn is said to be:

One way of exaggerating the apparent message conveyed by a bar graph is by:

Suppose that a biologist took water samples at random intervals from a rapidly flowing creek to test for contaminants. A sample was taken at a single location from the center of the creek for one year. Could such a survey be depended on?

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