You conduct a trial where 75 people are randomly selected and asked if they prefer coffee...
You conduct a trial where 75 people are randomly selected and asked if they prefer coffee from MD. Your responses indicate that 60% of them did prefer coffee from MD.
Find the mean and standard deviation.
Homework Answers
Solution :
Given that,
Using binomial distribution,
Mean = 
= n * p = 75 * 0.60 = 45
Standard deviation = 
= 
n * p * q =
75 * 0.60 * 0.40 =
18 = 4.2426
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