# The owner of Gilleys Ice Cream Parlor has noticed that she sells more ice cream on hotter

## Question:

86° .......... 92°

85 ......... 94

78 ......... 83

91 ......... 81

90 ........ 84

92 ........ 76

83 ........ 78

80 ........ 78

69 ........ 85

74 .......... 90

Compute the mean and standard deviation for these data and determine the expected number of days in July and August that the high temperature will be 85° or greater.

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