AnswersCR27 ALG 1-1200310-S2-Degele-VOL7006PDescribing Data

Describing Data Answers

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Ryan called each school in the district to determine whether or not they have a recycling program. What is true about Ryan’s data collection?

A
Ryan conducted a survey where he asked about qualitative data.
B
Ryan conducted a survey where he asked about quantitative data.
C
Ryan conducted an observational study where he asked about qualitative data.
D
Ryan conducted an observational study where he asked about quantitative data.
2
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The number of points that Shira scored each basketball game so far this season is shown on the dot plot.

Question illustration
A
The data is skewed to the right and shows that she never scored fewer than 2 points or more than 12 points in a game.
B
The data is skewed to the right and shows that she scored 11 points in more games than all of the other games combined.
C
The data is skewed to the left and shows that she never scored fewer than 2 points or more than 12 points in a game.
D
The data is skewed to the left and shows that she scored 11 points in more games than all of the other games combined.
3

The ages of the people in attendance at the showing of an award-winning foreign film are shown below.

Question illustration
A
The data is symmetrical, showing that the majority of the attendees were between the ages of 30 and 50.
B
The data is symmetrical, showing that the majority of the attendees were between the ages of 21 and 60.
C
The data is skewed, showing that the majority of the attendees were between the ages of 30 and 50.
D
The data is skewed, showing that the majority of the attendees were between the ages of 21 and 60.
4

Janie asked all of her classmates about the number of pets they have in their household. Her findings are shown in the table.Which statement about the two-way frequency table is true?

Question illustration
A
The survey represents quantitative data.
B
There is a greater percentage of girls who do not own a pet than boys who do not own a pet.
C
The total number of girls who own 2 or more pets is 2.
D
More girls do not own a pet than do own a pet.
5

Irina’s basketball team has a 1 in 6 chance of winning the first-place trophy. She rolled a six-sided number cube repeatedly, assigning her team a number from 1 to 6 to demonstrate the probability that her team would win.

A
survey
B
simulation
C
experiment
D
observational study
6

Staff from the school newspaper is taking a poll to find out how students in the school are going to vote in the upcoming election for class president. Which group would best represent a sample population?

A
Every tenth student staying after school.
B
Every tenth student in the library at lunch.
C
Every tenth student in the main hallway between class.
D
Every tenth student in the student section at the school football game.
7

The amount of rainfall each month over the past four years is shown below.

Question illustration
A
The data is skewed, showing that the majority of the monthly rainfall amounts was between 2.01 and 4 inches.
B
The data is skewed, showing that the majority of the monthly rainfall amounts was less than 2.01 or greater than 4 inches.
C
The data is symmetrical, showing that the majority of the monthly rainfall amounts was between 2.01 and 4 inches.
D
The data is symmetrical, showing that the majority of the monthly rainfall amounts was less than 2.01 or greater than 4 inches.
8

Valeriya wants to determine the likely voting outcome for the new town council election. Which sample is likely to yield the most biased results?

A
every tenth person working for the largest corporation in town
B
ten people chosen at random from each page of the town’s phone list
C
every tenth person walking down Main Street in town on a variety of days and times of the day
D
ten eligible voters chosen at random from each of the different neighborhoods in town
9

Sal recorded the number of crackers in each snack-sized package he opened.Which statement must be true according to the box plot?

Question illustration
A
The data is symmetric, and the lowest number of crackers in a package was 7.
B
The data is symmetric, and the lowest number of crackers in a package was 8.
C
The data is skewed, and the lowest number of crackers in a package was 7.
D
The data is skewed, and the lowest number of crackers in a package was 8.
10

A survey was taken of a random sampling of residents of New York City and Los Angeles to compare how many of them own a car.Which statement about the two-way frequency table is true?

Question illustration
A
The survey represents quantitative data.
B
There is a greater percentage of LA residents who own a car than NYC residents who do.
C
The total number of people in the poll who own a car is 4,120.
D
More people in the poll own a car than do not own a car.

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