2 4 measures of center

Describing, Exploring, and Comparing Data ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Summarizing data: Measures of Center ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mean ,[object Object],[object Object],[object Object]

Mean: For example 1300 990 990 SAT 1300 1290 1190 1100 1050 1500 1200

Weighted Mean ,[object Object],[object Object],[object Object],[object Object]

Weight Mean: For example Weight 1300 990 990 SAT 1300 1290 1190 1100 1050 1500 1200

Mean from a Frequency Table ,[object Object],[object Object],[object Object],[object Object],[object Object],Total Midpoint Freq Classes 1 4 63 121 11 75-79 70-74 65-69 60-64 55-59

Median ,[object Object],[object Object],[object Object],[object Object],[object Object]

Median Example 1440 1390 1310 1300 1260 1210 1210 1170 1100 1050 1440 1390 1310 990 1300 1260 1210 1210 1170 1100 1050

Mean vs. Median ,[object Object],[object Object],[object Object],[object Object]

Mode ,[object Object],[object Object],[object Object],[object Object]

Midrange ,[object Object],1440 1390 1310 990 1300 1260 1210 1210 1170 1100 1050

Live example ,[object Object],72 82 86 86 80 90 74 58 28 58 88 98

Your Turn ,[object Object],-1 -4 -1 12 28 32 37 14 2 9 14 27 31 31 32 27 34 18 -3 1 17 -6 -3 16 27 21 10 15 17 17 9

2 4 measures of center

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