Question

What is the mean of the values in the stem-and-leaf plot?

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Answer 1

mean = 24

Explanation:

the mean is calculated as

mean =
`(sum)/(count)`

the sum of the data set is

sum = 12 + 13 + 15 + 28 + 28 + 30 + 42 = 168

there is a count of 7 in the data set , then

mean =
`(168)/(7)` = 24