The football and soccer teams at Juan’s middle school are selling movie tickets. He wants to determine the average number of tickets sold at the school. First, he surveyed eight random players on the football team. Then, he surveyed every third athlete on the football and soccer team. Which sampling technique should produce a more representative sample?
When Jim surveyed 5 sixth-grade students at the community skating rink, he found that only 1 out of the 5 had completed the science project. He knows there are about 160 sixth-grade students in his community, so he infers that around 32 students have finished their science project. Is this a good inference?
The manager of a popular restaurant wants to know what types of vegetarian dishes people prefer to eat. Which sample would provide the most accurate data?
Students at Hampton Middle School sold T-shirts as a school fundraiser. Sylvie asked 12 random seventh-grade students how many T-shirts they sold for the fundraiser. The number of T-shirts each student sold is listed below.3, 4, 8, 5, 2, 5, 0, 5, 3, 4, 3, 7What is the mean of the data set rounded to the nearest tenth?
During her lunch hour, Shawna asked 40 students how many after-school clubs they joined. The list below shows the number of clubs that the students joined.2, 2, 3, 0, 3, 2, 4, 2, 1, 4, 3, 2, 4, 1, 0, 2, 1, 3, 2, 0, 1, 1, 2, 1, 0, 3, 0, 1, 4, 1, 1, 0, 2, 3, 2, 0, 3, 2, 0, 1If this sample is representative of the student population of 360 students, about how many students in the school joined three clubs?
The Hamden board of education wants to know how the community feels about building a new media center for the middle school. They called every tenth person on the registration list of 7,300 voters until they had called a total of 40 voters. Which of the following are true of the sample of 40 voters? Check all that apply.
Two random samples were taken to determine how often people in a community listen to the local radio station each month. The first sample surveyed 15 people as they exited the bank on Main Street. The first sample found that the mean number of hours they listened to the radio each month was 20.The second sample surveyed every sixth person as they exited the only local grocery store until 100 people were surveyed. The second sample found that the mean number of hours they listened to the radio each month was 12.Which statements are true? Check all that apply.
Principal Phillipi used a random sample of 20 student records to determine how far, in miles, students live from the school. The results are shown below.3, 4, 5, 3, 4,5, 6, 5, 4, 3,2, 3, 4, 5, 6,4, 8, 4, 3, 2 What is the mean distance that his students live from the school, rounded to the nearest tenth?
The drama club members at Millie’s middle school are selling tickets to the school play. Millie wants to determine the average number of tickets sold per member. First, she surveyed the club members in her homeroom, and then she surveyed every third member of the club in her physical education class from an alphabetical list of all members. Which sampling technique should produce a more representative sample?
Carmen used a random number generator to simulate a survey of how many children live in the households in her town. There are 1,346 unique addresses in her town with numbers ranging from zero to five children. The results of 50 randomly generated households are shown below.Children in 50 HouseholdsNumber of ChildrenNumber of Households051112133104952Using a proportion, what can you infer about the number of households in her town that have more than three children?
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