Measures of Center — Quiz Answers

Adrianne records the daily rainfall, in mL, over the course of 7 days. 38.5 , 22.4 , 23.1 , 35.2 , 29.4 , 33.6 , 25.5 Calculate the mean rainfall. Round the answer to the nearest tenth. Enter your answer in the box.

Brooke has scores of 84, 72, 90, 95, and 87 on her first five quizzes. After taking the sixth quiz, Brooke’s mean score increased. Which could be Brooke’s sixth quiz score? Choose three correct answers.

Mr. Li records the measures of the lengths of his students’ handprints. The lengths, in centimeters, are shown in the table. 14 point 0 11 point 5 12 point 1 16 point 2 13 point 5 14 point 3 16 point 8 12 point 4 13 point 7 12 point 0 14 point 7 15 point 2 11 point 9 15 point 6 13 point 8 14 point 2 12 point 5 15 point 0 16 point 0 13 point 1 11 point 7 If the class creates a histogram of the data in the table, how many students are in the range 12 cm to 13 point 9 cm?

Quinn mailed four postcards that each cost 0 point 2 5 dollars , five letters that each cost 0 point 4 4 dollars , two large envelopes that each cost 0 point 8 0 dollars , and one small package for 5 point 1 0 dollars Which cost on the list of mailing fees on Quinn’s receipt would skew the mean?

The dot plot represents an order of varying shirt sizes. Expand Image Which histogram represents the same data?

Tristan records the number of customers who visit the store each hour on a Saturday. His data representing the first seven hours are 15, 23, 12, 28, 20, 18, and 23. How many customers visited the store during the eighth hour if the median number of customers per hour did not change?

If a new data point at 12 is added to the graph, which will be true? Expand Image

There are 8 sophomores on the academic team. At the last competition, they each took the math test. Their scores were 82 percent , 92 percent , 76 percent , 72 percent , 92 percent , 74 percent , 80 percent , and 78 percent What was the median math score of the sophomores?

Colin surveyed 12 teachers at his school to determine how much each person budgets for lunch. He recorded his results in the table. 10 5 8 10 12 6 8 10 15 6 12 18 What does the relationship between the mean and median reveal about the shape of the data?