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Binomial distribution and probability of observing an event.

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Jared bets on the number 7 for each of 100 spins of a roulette wheel. Because P(7) = 1/38 he expects to win two or three times. What is the probability that Jared will actually win two or more times?

This was a quiz question I answered incorrectly, I want to understand how to get it if a similar question is on the mid term.

The correct answer was about 3 out of 4.

Can you please explain how this was determined.

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Solution Summary

The expert examines the binomial distribution and probability of observing an event is examined.

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To answer this problem, you need to use the binomial distribution formula (see Excel file).

The formula gives us the probability that something occurs ...

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