Coach Ferguson uses a thermometer to measure the temperature (in degrees Fahrenheit) at 20 different locations in the school swimming pool. An analysis of the data yields a mean of 77 degrees Fahrenheit and a standard deviation of 3 degrees Fahrenheit. Recall that ∘C=59∘F−1609 What is the mean temperature reading in degrees Celsius?

∘F=(9/5)∘C+32).

Explanation:

Coach Ferguson uses a thermometer to measure the temperature (in degrees Celsius) at 20 different locations in the school swimming pool. An analysis of the data yields a mean of

25∘C

and a standard deviation of

2∘C.

Find the mean and standard deviation of the temperature readings in degrees Fahrenheit (recall that

∘F=(9/5)∘C+32).