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 found that n=80 and p'=0.8.
Step-by-step explanation
Step 1.
Each student represents a trial which has 2 outcomes- success( student is a girl) or failure (student is a boy). The probability of success or failure is fixed and the number of trials is also fixed. Therefore, the problem can be modelled using a binomial distribution.
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