SOLUTION: 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

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Question 903947: 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

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?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

always recommend finding "Totals" 

Income after Taxes			Number of Firms

	

Under $1 million				102

$1 million to $20 million			61

$20 million or more		               37

Total Firms                                                   200

a) P = 102/200

b) P = 61/200 + 37/200