Statistics & Probability 1

• 4.5

• 12.5

• 45

• 36

• 39

Tags

CCSS.HSG.SRT.B.5

Kate conducts a survey at her middle school to determine the students' favorite sport. Which sampling method would best produce a representative sample of the population?

• Kate surveys the football team.

• Kate surveys seventh grade students.

• Kate surveys every 4th student entering the school.

• Kate surveys every 8th student from a roster of the choir members.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A company manufactures cell phones. In August, a random sample of 125 cell phones was inspected, and 3 phones were found to be defective. The company manufactured 8,000 cell phones in August. Based on the results from the sample, about how many cell phones are expected to be defective?

• 64 cell phones

• 192 cell phones

• 2,667 cell phones

• 3,360 cell phones

Tags

CCSS.7.SP.A.2

• The probability of Jaime rolling a 4 on the number cube and the spinner landing on red is 1/9.

• The probability of Jaime rolling a 3 on the number cube and the spinner landing on blue is 1/6.

• The probability of Jaime rolling a 2 or 3 on the number cube and the spinner landing on green is 1/18.

• The probability of Jaime rolling an even number on the number cube and the spinner landing on blue is 1/6.

• The probability of Jaime rolling a 1 on the number cube and the spinner landing on blue or green is 1/9.

The dot plot shows students' math test scores from the 6th & 7th grades. The range of test scores in 6th grade is ____________ the range of test scores in 7th grade.

• less than

• greater than

• equal to

• can not be determined

The dot plot shows students' math test scores from the 6th & 7th grades. The mean test score in 6th grade is _______________ the mean test score in 7th grade.

• less than

• greater than

• equal to

• can not be determined

Ms. Evan allows her students of the week to spin the reward shown. The chance of earning a 5-point bonus on the test is ________________.

• likely

• certain

• unlikely

• impossible

Tags

CCSS.7.SP.C.5

As part of a science experiment, Sam measured the amount of rainfall in inches over the course of the week. A table of the measurements Sam collected is shown. What was the mean amount of rainfall over the course of the week?

• 1 8/21 inches

• 1 14/15 inches

• 9 2/3 inches

• 13 2/3 inches