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4. If 15% of the population is left-handed, find the probability that in a class of...

4. If 15% of the population is left-handed, find the probability that in a class of 35 students that 3 or fewer are left-handed.

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Answer #1

Let X be the number of students out of 35 who are left-handed. Then

X ~ Binomial(35,0.15)

We need to compute Pr(X≤3)

Therefore, we get that

Let me know in the comments if anything is not clear. I will reply ASAP! Please do upvote if satisfied!

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