Four bad apples are accidently mixed with sixteen good apples. Let X denote the number of bad apples in a random draw of two apples. Then A. $P(X=0)=\frac{12}{19}$ B. $E(X)=\frac{3}{5}$ C. Standard Deviation of $X=\frac{12}{5\sqrt{19}}$ D. $P(X+2)=\frac{32}{95}$ E. $Var(X)=\frac{144}{475}$ Choose the correct answer from the options given below : |
A, B, C, E A, B, D A, C, E B, C, E |
A, C, E |