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# Probability

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A study of 200 grocery chains revealed these incomes after taxes.

incomes after taxes num of firms
under \$1million 102
\$1 million to 20 million 61
\$20 million or more 37

a. What is the probability a particular chain has under \$1 million in income after taxes?

b. What is the probability a grocery chain selected at random has either an income between \$1 million and \$20 million, or an income of \$20 million or more? what rule of probability was applied?

##### Solution Summary

Probability calculations have been performed.

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A study of 200 grocery chains revealed these incomes after taxes:

Income after Taxes Number of Firms
Under \$1 million 102
\$1 million to \$20 million 61
\$20 million or more 37
Total 200

a. What is the probability a particular chain has under \$1 million in income ...

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