Describing Data Answers
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A poll is being taken on Wednesday to predict which movie will be the most popular at the city’s movie theaters the next weekend: an animated movie, an action movie, or a romantic comedy. Which group would best represent a sample population?
A
Every fifth person coming out of the high school.B
Every fifth person in the mall’s food court at lunchtime.C
Every fifth person coming out of the downtown grocery store at different times throughout the day.D
Every fifth person walking down the street in several different locations throughout town at different times of day.2
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Which is an example of a survey involving quantitative data?
A
the favorite food of each personB
the number of cavities each person has hadC
the color of the walls in each person’s bedroomD
the type of car that each person owns3
Which sample fairly represents the population? Select two options.
A
measuring the height of every fiftieth person on the school roster to determine the average height of the boys in the schoolB
calling every third person on the soccer team’s roster to determine how many of the team members have completed their fundraising assignmentC
observing every person walking down Main Street at 5 p.m. one evening to determine the percentage of people who wear glassesD
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 townE
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 lunch4
The ages of the people in attendance at the showing of an award-winning foreign film are shown below.
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 60.5
A researcher must choose between two methods:
A
The researcher wants to spend more money.B
The researcher wants more detailed and accurate data.C
The researcher wants a smaller sample size.D
The researcher wants results immediately.Did you find these answers helpful?
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