23 A school newspaper staff is comprised of 5 seniors, 4 juniors, 5 sophomores, and 7 freshmen. 24 f 8 staff members are chosen at random for a publicity photo, what is the probability that there will be 2 seniors, 3 juniors, 2 sophomore, and 1 freshmen?

Q: I'm not sure what you did in step 2, can you explain it please?

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A: We have given that Mean(µ) = 72.6Standard deviations (σ) = 4.78X ~ N (µ, σ )= N(72.6, 4.78)

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