Range and Interquartile Range (Pre-Test and Quiz)

Pren recorded this data set, which contains an outlier.204, 216, 111, 224, 230, 211, 210, 198, 200, 218 What numbers represent the range, lower quartile, and upper quartiles?

range: 119 lower quartile: 200 upper quartile: 218

Which method can be used to find the interquartile range for a set of data?

Find the difference between the upper and lower quartiles.

Harlon recorded this set of data, which contains an outlier. 163, 97, 184, 199, 169, 175 What is the range of this set of data?

102

What is the interquartile range of this set of data?15, 19, 20, 25, 31, 38, 41

19

Raj recorded the scores of six of his classmates in the table. Math Scores 98 76 100 88 82 70 What is the range of their test scores?

30

What is the range for this set of data?38, 17, 55, 40

38

A car dealership owner created a data table to see how many new and used cars were sold over several months. What is the range for the number of cars, new and used, that were sold from July to December?

75

What is the range for this set of data? 7, 15, 12

8

Kellan collected two sets of data and recorded them in the table. Set 1: 17 13 18 24 21 Set 2: 81 70 94 68 95 Which set has a wider spread, and what is the range?

Set 2 has a wider spread and has a range of 27.

Swati recorded this data set, which contains an outlier. 163, 97, 184, 199, 169, 175 What numbers represent the lower and upper quartiles?

lower quartile: 163 upper quartile: 184

What is the upper and lower quartile of this set of data?15, 19, 20, 25, 31, 38, 41

lower quartile: 19 upper quartile: 38