A number is selected at random from the set {1,2,...,20}. Then a second number is selected...

A number is selected at random from the set {1,2,...,20}. Then a second number is selected randomly between 1 and the ﬁrst number selected. What is the probability that the second number is 5?

Expert Solution

We are including the boundary case here i.e if a number is to be chosen between (1,2,...,5) it can be any of the numbers 1,2,3,4 and 5. So it has a probability 1/5 (i.e the last number is included in the calculation).

orchestra answered 2 years ago

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