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120 people live in an apartment complex. The mean age is 56 years old (treat these...

120 people live in an apartment complex. The mean age is 56 years old (treat these as discrete numbers). The standard deviation is 12 years. What is the probability that someone would not be in their 30s?

a- 92.98%

b- 91.62%

c- 92.80%

d- 77.82%

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Answer #1

solutions Given data, ns 120 4=56 o=12 P ( someone that would not be in their 30s) = P(x340) P(x>40) = P(x > 39.5) After cor

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