Question

A card is taken out of a full pack of 52 cards. It is replaced. Again a card is taken out. The probability of getting 2 kings is

• A. $\frac{1}{169}$
• B. $\frac{1}{52}$
• C. $\frac{1}{26}$
• D. $\frac{2}{51}$

Answer 1

Answer: (A)

$\frac{1}{169}$

Total number of ways of getting a king in one trial is $\frac{4}{52}=\frac{1}{13}$

For two trials with replacement, Number of ways will be $=\frac{4}{52}\times \frac{4}{52}=\frac{1}{13}\times \frac{1}{13}=\frac{1}{169}$