Textbook ExpertVerified Tutor
10 Nov 2021
Given information
The number of girls in the ice skating class for ages 8-12 and for the beginner level is counted. Out of the chosen sample, 64 are girls and 16 are boys.
From the previous task, it is known that
Step-by-step explanation
Step 1.
Notice that there are 80 trials each of which result in either a success (student is a girl) or failure (student is a boy). The probability of success or failure is constant for each trial and the number of trials are fixed.
Thus, all the conditions are in place for the use of the binomial distribution to model the problem.
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