Chapter 8, Problem 43RE

( A )

To determine

To calculate:The expected number of red balls if urn $U_1$ contains $2$ white balls and $3$ red balls and two balls are drawn from it in succession in a way such that the first ball drawn is replaced.

( B )

To determine

To calculate:The expected number of red balls if urn $U_1$ contains $2$ white balls and $3$ red balls and two balls are drawn from it in succession in a way such that the first ball drawn is not replaced.