AnswersPBCSD_Grade_Forgiveness_1207350_Mathematics_for_College_Liberal_Arts_S2_2023Introduction to Statistics

Introduction to Statistics — Cumulative exam Answers

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A large city offers many venues for watching a concert. A listing of concert venues for the city includes the following information: the number of seats, the age of the venue, the number of nearby parking spaces, and the location of the venue (inside or outside). What are the individuals in the data set?

A
concert venues
B
seats
C
ages of the venue
D
parking spaces
42
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Many people enjoy taking cruises for their vacations. Each cruise ship has different options and features. Which of the following is an example of a continuous quantitative variable that might be reported about each cruise ship?

A
type of engine used
B
number of guest rooms
C
average speed in the ocean
D
number of restaurants on the ship
43

A website lists homes for sale in a suburban town. The site provides information including neighborhood, selling price, age of the home (in years), number of bedrooms, and whether the home has a garage. Which of the variables is a categorical variable?

A
neighborhood
B
selling price
C
age of the home
D
number of bedrooms
44

A manager of a basketball team collects information on the profile and performance of the players on the team. Which of the following is an example of a continuous quantitative variable the manager might collect?

A
the height of each player
B
the position played by each player
C
the number of games played by each player
D
the number of foul shots made by each player
45

A movie theater offers many movie selections for its customers. The table below shows a summary of five movies currently offered and whether the movie is appropriate for children.What are the individuals in the data set?

Question illustration
A
movie titles
B
movie types
C
lengths
D
critics’ scores
46

After years of maintaining a steady population of 32,000, the population of a town begins to grow exponentially. After 1 year and an increase of 8% per year, the population is 34,560. Which equation can be used to predict, y, the number of people living in the town after x years? (Round population values to the nearest whole number.)

A
y = 32,000(1.08)x
B
y = 32,000(0.08)x
C
y = 34,560(1.08)x
D
y = 34,560(0.08)x
47

The heights of a sample of 15 students are recorded in the stemplot below.

Question illustration
A
65
B
65.2
C
66
D
67
48

In some gymnastics meets, the score given to a gymnast is the mean of the judges’ scores after the highest and lowest scores have been tossed out. Nikita’s scores on the floor routine from all of the judges are:7.50, 7.50, 7.75, 7.75, 8.00, 8.00, 8.00, 10.00

A
Her median score does not change.
B
Her median score is lower after removing the highest and lowest scores.
C
Her median score is higher after removing the highest and lowest scores.
D
There is not enough information to determine if her median score increases or decreases.
49

What is the y-intercept of the function f(x) = –x + ?

Question illustration
A
–
Option A
B
–
Option B
C
StartFraction 1 Over 3 EndFraction.
Option C
D
StartFraction 2 Over 9 EndFraction.
Option D
50

Which statements could he include in his explanation? Select two options.

A
The domain of both functions is all real numbers.
B
The domain of f(x) is x > 5.
C
The domain of g(x) is x > 5.
D
The range of f(x) is y > 0.
E
The range of g(x) is y > 0.

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