Question: 1.2.3 A population having N distinct elements is sampled with replacement. Because of repetitions, a random sample of size r may contain fewer than r

1.2.3 A population having N distinct elements is sampled with replacement. Because of repetitions, a random sample of size r may contain fewer than r distinct elements. Let Sr be the sample size necessary to get r distinct elements. Show that

1 1 N-1 | E[S,] = N( ~ + N

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