4% of the lightbulbs produced at Shady Stan's lightbulb factory are defective. An inspector visits the factory and randomly grab
s 200 lightbulbs. Find the mean and standard deviation.
1 answer:
Answer: Mean = 8 and standard deviation is 2.77
Step-by-step explanation:
The mean and standard deviation for a binomial distribution is given by :-
, where n is the sample size and p is the probability of getting success.
Given : The proportion of the lightbulbs produced at Shady Stan's lightbulb factory are defective: p=0.04
Sample size : 
Then , the mean and standard deviation for a binomial distribution is given by :-

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