Lesson 3 Extra Practice: Measures of Variation
NAME __________________________________________ DATE ____________ PERIOD _______
Lesson 3 Extra Practice: Measures of Variation
Find the range, median, Q1, Q3, IQR, and outliers for each set of data. 1. ages of players on a team: {15, 12, 21, 18, 25, 11, 17, 19, 20}
range: 14; median: 18; Q1: 13.5; Q3: 20.5; IQR: 7; no outliers
2. ages of cousins: {2, 24, 6, 13, 8, 6, 11, 4} range: 22; median: 7; Q1: 5; Q3: 12; IQR: 7; outlier: 24
3. dollars in an account: {189, 149, 155, 290, 141, 152} range: 149; median: 153.5; Q1: 149; Q3: 189; IQR: 40; outlier: 290
4. daily attendance at a fair: {451, 501, 388, 428, 510, 480, 390} range: 122; median: 451; Q1: 390; Q3: 501; IQR: 111; no outliers
5 number of calls made: {22, 18, 9, 26, 14, 15, 6, 19, 28} range: 22; median: 18; Q1: 11.5; Q3: 24; IQR: 12.5; no outliers
6. text messages received: {245, 218, 251, 255, 248, 241, 250}
range: 37; median: 248; Q1: 241; Q3: 251; IQR: 10; no outliers median: 145; Q1: 129; Q3: 158; IQR: 29; outlier: 202
range: 82;
Course 1 ? Chapter 11 Statistical Measures
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