Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase

تمرين 67

Probability Estimate: Wiggle Your Ears Can you wiggle your ears Use the students in your statistics class (or a group of friends) to estimate the percentage of people who can wiggle their ears. How can your result be thought of as an estimate for the probability that a person chosen at random can wiggle his or her ears Comment : National statistics indicate that about 13% of Americans can wiggle their ears (Source: Bernice Kanner, Are you Normal , St. Martin's Press, New York).