Question

Solve using a TI-83 or 84 calculator. One area of inquiry in the field of evolutionary biology deals with human mating habits, and the preferences we use in selecting a romantic partner. Both genders place a high value on looks in their mate selection process, and a scale has been developed to quantify the looks rating. The possible scores range from 0 to 25, where the population mean is 12.5 and the population standard deviation is 4.5. The distribution of scores is Normal. Use the Empirical rule to find the following (it might be helpful to make a sketch): a. Approximately what percent of the population has a looks rating between 8 and 17? b. Approximately what percent of the population has a looks rating of 17 or higher?

          Solve using a TI-83 or 84 calculator. One area of inquiry in the
field of evolutionary biology deals with human mating habits, and
the preferences we use in selecting a romantic partner. Both
genders place a high value on looks in their mate selection
process, and a scale has been developed to quantify the looks
rating. The possible scores range from 0 to 25, where the
population mean is 12.5 and the population standard deviation is
4.5. The distribution of scores is Normal. Use the Empirical rule
to find the following (it might be helpful to make a sketch):
a. Approximately what percent of the population has a looks rating
between 8 and 17?
b. Approximately what percent of the population has a looks rating
of 17 or higher?

Added by Nerea E.

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