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Answer :
The expected number of days pete will catch fish is 0.36. So the option 3 is correct.
In the given question, the probability pete will catch fish when he goes fishing is 0.9.
Pete is going fishing 4 days next week.
We have to find the expected number of days pete will catch fish.
From the question,
Pete is going fishing 4 days next week. So n=4
The probability pete will catch fish when he goes fishing is 0.9. So P(F)=0.9
The formula for variance is:
Variance = n*p*(1-p)
Variance = 4*0.9*(1-0.9)
Variance = 4*0.9*0.1
Variance = 0.36
So the expected number of days pete will catch fish is 0.36. So the option 3 is correct.
To learn more about variance link is here
brainly.com/question/16336318
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