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Question

Harry measured the temperature at 2 p.m. at the same spot in his garden and recorded his results to the nearest degree (°F) for each day in the year (365 days).

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On approximately what percent of the days was the 2 p.m temperature above 40°F but less than 70°F?


A

Approximately 70%

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B

Approximately 50%

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C

Approximately 60%

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D

Approximately 80%

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Solution

The correct option is A

Approximately 70%


The number of days for which the temperature was above 40°F but less than 70°F is found by adding the frequencies for the groups 40 to 50, 50 to 60, and 60 to 70

Which is (approximately) 132 + 76 + 54 = 262

As a percent of the year, this is:

262365×100

or approximately 70%


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