First slide

Theorems of probability

Question

Two cards are selected at random from 52 playing cards then the probability of selecting one king and one Queen is

Easy

A

$\frac{4^{2}}{^{52} C_{2}}$
B

$\frac{4}{^{52} C_{2}}$
C

$\frac{1}{^{52} C_{2}}$
D

$\frac{4 \times 3}{^{52} C_{2}}$

Solution

$P (A) = \frac{n (A)}{n (s)} = \frac{4_{c_{1}} {.4}_{c_{1}}}{52_{c_{2}}} = \frac{4^{2}}{52_{c_{2}}}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App