question

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?
Every tenth student staying after school.
Every tenth student in the library at lunch.
Every tenth student in the main hallway between class.
Every tenth student in the student section at the school football game.

answer

Every tenth student in the main hallway between class.

question

Gustavo is in a contest where he will win one of four possible prizes. He creates a four-part spinner to represent the four prizes that he has an equal chance of winning: a video game system, a bicycle, a watch, and a gift card. He spins the spinner several times to demonstrate the likelihood of winning a certain prize.
What is true about Gustavo's data collection?
Gustavo used an experiment where the data is qualitative.
Gustavo used an experiment where the data is quantitative.
Gustavo used a simulation where the data is qualitative.
Gustavo used a simulation where the data is quantitative.

answer

Gustavo used a simulation where the data is qualitative.

question

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.
Which method did she use to collect her data?
survey
simulation
experiment
observational study

answer

simulation

question

Valeriya wants to determine the likely voting outcome for the new town council election. Which sample is likely to yield the most biased results?
every tenth person working for the largest corporation in town
ten people chosen at random from each page of the town's phone list
every tenth person walking down Main Street in town on a variety of days and times of the day
ten eligible voters chosen at random from each of the different neighborhoods in town

answer

every tenth person working for the largest corporation in town

question

Which sample fairly represents the population? Select two options.
measuring the height of every fiftieth person on the school roster to determine the average height of the boys in the school
calling every third person on the soccer team's roster to determine how many of the team members have completed their fundraising assignment
observing every person walking down Main Street at 5 p.m. one evening to determine the percentage of people who wear glasses
sending a confidential e-mail survey to every one-hundredth parent in the school district to determine the overall satisfaction of the residents of the town
taking a poll in the lunch room (where all students currently have to eat lunch) to determine the number of students who want to be able to leave campus during lunch

answer

NOT:
-sending a confidential e-mail survey to every one-hundredth parent in the school district to determine the overall satisfaction of the residents of the town
-taking a poll in the lunch room (where all students currently have to eat lunch) to determine the number of students who want to be able to leave campus during lunch

question

An Internet and cable-television supplier surveyed a random sample of their customers. The results are shown in the table.
Which statement about the two-way frequency table is true?
The survey represents quantitative data.
There is a greater percentage of Internet customers who are not satisfied than cable television customers who are not satisfied.
About half of the customers surveyed are cable-television customers.
About one-fourth of the cable-television customers are not satisfied.

answer

About one-fourth of the cable-television customers are not satisfied.

question

Which is an example of a survey involving quantitative data?
the favorite food of each person
the number of cavities each person has had
the color of the walls in each person's bedroom
the type of car that each person owns

answer

the number of cavities each person has had

question

Sal recorded the number of crackers in each snack-sized package he opened.
Which statement must be true according to the box plot?
The data is symmetric, and the lowest number of crackers in a package was 7.
The data is symmetric, and the lowest number of crackers in a package was 8.
The data is skewed, and the lowest number of crackers in a package was 7.
The data is skewed, and the lowest number of crackers in a package was 8.

answer

The data is skewed, and the lowest number of crackers in a package was 7.

question

The amount of rainfall each month over the past four years is shown below.
Which statement must be true according to the histogram?
The data is skewed, showing that the majority of the monthly rainfall amounts was between 2.01 and 4 inches.
The data is skewed, showing that the majority of the monthly rainfall amounts was less than 2.01 or greater than 4 inches.
The data is symmetrical, showing that the majority of the monthly rainfall amounts was between 2.01 and 4 inches.
The data is symmetrical, showing that the majority of the monthly rainfall amounts was less than 2.01 or greater than 4 inches.

answer

The data is symmetrical, showing that the majority of the monthly rainfall amounts was less than 2.01 or greater than 4 inches.

question

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?
The survey represents quantitative data.
There is a greater percentage of girls who do not own a pet than boys who do not own a pet.
The total number of girls who own 2 or more pets is 2.
More girls do not own a pet than do own a pet.

answer

The survey represents quantitative data.