MDC Statistics Standard Deviation & Central Limit Theorem Problems Help

1-In one sentence, please write what you understand by the term standard deviation.
2-Imagine yourself at a fair playing one of the midway games. Pick a game and calculate the expected value and post your results along with how you calculated them. For example, you may decide to throw a basketball to try to win a $10 bear. You paid $2.00 for three shots. What is the expected value? (Please do not use this example in your answer)
3-In one sentence, summarize what you understand of the Central Limit Theorem.
4-collect a sample of books consisting of the ages of book (based on copyright dates). Plan and describe the sampling procedure, then use the results to construct a confidence interval estimate of the mean age of all books in the library. Please, post and share your results with the class.

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