SOLUTION: The topic is Survery... I am very confused here is the question. Eric Dangerfield interviewed 140 people in a surban shopping center to find out some of their cooking habits. H

Question 717398: The topic is Survery... I am very confused here is the question.
Eric Dangerfield interviewed 140 people in a surban shopping center to find out some of their cooking habits. He obtained the results given at the top of the next column.
58 use microwave, 63 use electric ranges, 58 use gas ranges, 19 microwave ovens and electric ranges, 17 use microwave ovens and gas ranges, 4 use both gas and electric ranges and 1 use all three
a. How many use exactly two of these kinds of appliances?
b. How many use at least two of these kinds of appliances?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Eric Dangerfield interviewed 140 people in a suburban shopping center to find out some of their cooking habits.
He obtained the results given at the top of the next column.
58 use microwave, 63 use electric ranges, 58 use gas ranges, 19 microwave ovens and electric ranges, 17 use microwave ovens and gas ranges, 4 use both gas and electric ranges and 1 use all three
:
a. How many use exactly two of these kinds of appliances?
"19 microwave ovens and electric ranges, 17 use microwave ovens and gas ranges,4 use both gas and electric ranges"
19 + 17 + 4 = 40
:
b. How many use at least two of these kinds of appliances?
"19 microwave ovens and electric ranges, 17 use microwave ovens and gas ranges, 4 use both gas and electric ranges and 1 use all three"
40 + 1 = 41
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