Concept explainers
Hands (Example 5) A survey was done of men’s and women’s hands to see if the ring finger appeared longer than the index finger or not. Yes means the ring finger is longer, and No means the ring finger appears shorter or the same length as the index finger. The students in this survey were not told the theory that men are more likely to have a longer ring finger than women due to more testosterone.
a. What percentage of the men said Yes?
b. What percentage of the women said Yes?
c. What percentage of the people who said Yes were men?
d. If a large group of 250 men had the same rate of responses as the men in this sample, how many men of the 250 would say yes?
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