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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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208
Solutions
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- Problem 114
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