STATS Part 1 SBAC Review

David wants to estimate the number of students from his seventh grade class whose favorite subject is math. He needs to create a random sample of students. How should David collect his sample data? A. David should ask 20 students in a math class. B. David should ask 20 students on a school bus. C. David should ask 20 students in seventh grade. D. David should ask 20 students from the entire school.

A representative sample of 50 students from a high school is surveyed. Each student is asked what science class he or she

is taking. The table shows the responses. Select all the statements about the students at the high school that are

valid based on the survey results.

A. Twice as many students are taking Health Science than are taking Physics.

B. 20% of students are taking Chemistry. C. In a group of 25 students, it is expected that 4 of the students are

taking Earth Science. D. In a group of 150 students, it is expected that 18 of the students are

taking Physics.

A sandwich shop manager wants to estimate how many of each type of sandwich will be purchased in a month. The manager keeps track of the orders for one week. The table shows the results.

A. 608 roast beef, 456 tuna, 836 turkey B. 857 roast beef, 467 tuna, 623 turkey C. 654 roast beef, 490 tuna, 899 turkey D. 479 roast beef, 878 tuna, 638 turkey E. 1299 roast beef, 1003 tuna, 1782 turkey

Amanda asked a random sample of 40 students from her school to identify their birth month. There are 300 students

in her school. Amanda’s data is shown in this table. Which of these statements is best supported by the data?

A. Exactly 25% of the students in Amanda’s school have April as their birth month.

B. There are no students in Amanda’s school that have a February birth month.

C. There are probably more students at Amanda’s school with an April birth month than a July birth month.

D. There are probably more students at Amanda’s school with a July birth month than a June birth month.