. According to a recent report, people smile an average of µ = 62 times per day. Assuming that the distribution of smiles is app
roximately normal with a standard deviation of σ = 18, find each of the following values: a. What proportion of people smile more than 80 times a day
1 answer:
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X=9 hope it helps..................
Equivalent expression
y/3 = 1/3 * y
Answer: 18
Step-by-step explanation:
