Battery recall. A company has discovered that a recent batch of batteries had manufacturing f laws, and

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Battery recall. A company has discovered that a recent batch of batteries had manufacturing f laws, and has issued a recall. You have 10 batteries covered by the recall, and 3 are dead. You choose 2 batteries at random from your package of 10.

a) Has the assumption of independence been met? Explain.

b) Create a probability model for the number of good batteries chosen.

c) What’s the expected number of good batteries?

d) What’s the standard deviation?

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Business Statistics

ISBN: 9781292269313

4th Global Edition

Authors: Norean Sharpe, Richard De Veaux, Paul Velleman

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