Calculator Diane and Curtis surveyed 8 of their friends to find the average number of minutes spent on math homework, per day. They recorded
the results of their survey in a list.
80, 75, 30, 70, 40, 55, 90, 20
What is the mean absolute deviation of this data set?
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If chord ab is congruent to chord cd, then what must be true about ef and eg?

Abakery recorded the number of muffins and bagels it sold for a seven day period. for the data presented, what does the value of 51 summarize? a) mean of bagels b) mean of muffins c) range of bagels d) range of muffins sample # 1 2 3 4 5 6 7 muffins 61 20 32 58 62 61 56 bagels 34 45 43 42 46 72 75

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22