Textbook ExpertVerified Tutor
9 Nov 2021
Given information
As per the given question ,
- Number of trials, = 8, and probability of success, = % or .
Step-by-step explanation
Step 1.
To determine the mean of the distribution i.e., the expected number of freshmen answering “yes” we will use below equation,
If a random variable follows a binomial distribution, then the mean is given by,
where is the number of trials and is the probability of success.
Hence, Mean
Thus, the expected number of freshmen answering ‘yes’ is , which is approximately equal to .
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