Question

Pratik has 8 grey socks and 8 white socks . he pulls out two socks randomly without looking at them. what is the probability of both white ​

Answer 1

Answer:

probability=1/8.

Step-by-step explanation:

• n(s)=8+8=16.
• Let A be the event that both are white socks.
• n(A)=2.
• probability=n(A)/n(S).
• =2/16=1/8
• Probability=1/8.

I hope u get it...

Answer 2

Grey socks = 8        ( given)

White socks = 8       ( given)

∴ Total number of socks = 8 + 8 = 16

The probability of pulling the first sock is white = $\frac{8}{16}$ = $\frac{1}{2}$

The probability of pulling the second sock is white = $\frac{7}{15}$

Therefore, the probability of pulling two white socks = ($\frac{1}{2}$) × ($\frac{7}{15}$) = $\frac{7}{30}$

Ans :- The probability of both white ​will be $\frac{7}{30}$