# Probability

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?

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#### Solution Preview

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 ...

#### Solution Summary

Probability calculations have been performed.