Cumulative Exam — Cumulative exam Answers

A simple random sample of 10 people were asked how many first cousins they have. The results are listed below.10, 19, 20, 13, 13, 2, 10, 8, 25, 10

A farmer sows 100 seeds of a new type of corn and wants to quickly determine the yield, or total number of ears of corn, for the crop when it has matured. He decides to take a simple random sample of the crop by using a random digit table. What is the fewest number of digits that should be used, given that there are 100 plants in total?

A random sample of teenagers were surveyed about their favorite sport. The bar graph below displays their responses.

The fuel economies in miles per gallon (mpg) for nine vehicles are listed below.16, 18, 20, 24, 24, 24, 24, 31, 32

An indoor running track is 200 meters in length. During a 3,000-meter race, runners must complete 15 laps of the track. An electronic timing device records the time it takes each runner to complete a lap for every lap in the race. These are called lap times. The histogram below displays the lap times for Stefano, a runner in the 3,000-meter race.