NAME DATE PERIOD Lesson 1 Homework Practice

NAME ___________________________________________________ DATE _____________________ PERIOD __________

Lesson 1 Homework Practice

Measures of Center

Find the mean, median, and mode for each set of data. If necessary, round to the nearest tenth.

1. 4, 6, 12, 5, 8 7; 6; none

2. 16, 18, 15, 16, 21, 16 17; 16; 16

3. 55, 46, 50, 42, 39 46.4; 46; none

4. 17, 16, 13, 17, 17, 10, 10, 13, 10 13.7; 13; 10, 17

5. 25, 25, 25, 20 23.8; 25; 25

6. 3.1, 4.5, 4.5, 4.3, 6.0, 3.2 4.3; 4.4; 4.5

Find the mean, median, and mode for each set of data. If necessary, round to the nearest tenth.

7.

8.

0

1

2

3

4

5

2.3; 2; 2

10.1 10.2 10.3 10.4 10.5 10.6 10.7

10.4; 10.5; 10.2, 10.6

9. The table below shows the number of tornadoes reported in the United States from 1997?2007. Find the mean, median, and mode for the number of tornadoes. If necessary, round to the nearest tenth.

Year

1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

Number of Tornadoes

1148

1417 1342 1071

1216

941

1367 1819 1264

1106 1074

1251.4; 1216; none

10. The following set of data shows the number of students per teacher at different elementary schools in one school district. Which measure of center best represents the data? Justify your selection and then find the measure of center.

13, 15, 11, 15, 20, 14, 16, 16, 13, 17 Mean or median; the data have no extreme values and no gaps in the middle of the data; 15.

Copyright ? The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use.

Math Accelerated ? Chapter 10 Statistics and Probability

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