On average, an American professional football game lasts about three hours, even though the ball is actually

Question:

On average, an American professional football game lasts about three hours, even though the ball is actually in play only 11 minutes (www.sportsgrid.com, January 14, 2014). Let the standard deviation be 0.4 hour.

a. Use Chebyshev’s theorem to approximate the proportion of games that last between 2.2 hours and 3.8 hours.

b. Assume a bell-shaped distribution to approximate the proportion of games that last between 2.2 hours and 3.8 hours.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...

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