Normal Probability Distributions/Normal Distributions: Finding Probabilities Question 28 Utility Bills

The normal distribution of monthly utility bills in a city has a mean of $100 and a standard deviation of $12.

  1. What percent (to three significant figures) of the utulity bills are more than $125?
    {#1}%

  2. If 300 utility bills are randomly selected, about how many would you expect to be less than $90?  (round your answer to the nearest bill)
    {#2} bill(s)
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