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Question number 4: Life expectancy in a country is known to follow a left-skewed distribution with...

Question number 4: Life expectancy in a country is known to follow a left-skewed distribution with a mean value of 79.66 years and a standard deviation of 3.06 years. Suppose we take a random sample of 15 members of this country, and calculate their average life expectancy. What is the probably that this sample has an average value of at most 79.74 years?

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Given, mean = M = 79.66 years Standard deviation=r= 3.06 sample size n=15 The probability that this Sample has an overage val

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