Question: Let X be a random variable denoting age. Consider a random sample of size n =20. X = (69,74,68,70,72,67,66,70,76,68,72,79,74,67,66,71,74,75,75,76). 1. Find the mean, median, and

Let X be a random variable denoting age. Consider a random sample of size n =20. X = (69,74,68,70,72,67,66,70,76,68,72,79,74,67,66,71,74,75,75,76). 1. Find the mean, median, and mode of X. (10 points) 2. Let us use the normal distribution to model the random variable X. Write down its probability density function (use the sample mean and standard deviation). (10 points)

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