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Question

The following table gives an account of the number of pretzels Luna's store sold in a week.
Lenny says that the mean number of pretzels sold will lie between 30 and 35. Bonnie says that it will be greater than 35 but less than 40.
Troy says that it will be less than 30.
Who is correct?

A
Troy
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B
Bonnie
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C
None of the above
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D
Lenny
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Solution

The correct option is B Bonnie
Mean = Sum of all data pointsNumber of data points

Thus, the mean of the given data set = 29 + 30 + 43 + 34 + 37 + 48 + 447=2657=37.85

37.8 lies between 35 and 40. Thus, Bonnie is correct.

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