A drawer contains 4 red socks, 3 white socks, and 3 blue socks. Without looking, you select a sock at random, replace it, and select a second sock at random. What is the probability that the first sock is blue and the second sock is red?

Question

zarkon · Answer

since this is sampling with replacement these events are independent.

parthkohli · Answer

$$\Large {1 \over 100} $$
This is the probability as the denominator is squared.
$$\Large {1 \over 10*10} = {1 \over 100}$$

anonymous · Answer

thx guys :)

zarkon · Answer

that is not correct

parthkohli · Answer

Oops yes, I'm wrong

anonymous · Answer

:) THERE R THE POSSIBLE ANSWERS

A . 3/5
B . 7/20
C . 3/25
D . 7/100

parthkohli · Answer

C is the answer. I'm completely sure.

anonymous · Answer

thx soooooo much :)

zarkon · Answer

$$\frac{3}{10}\frac{4}{10}=\frac{12}{100}=\frac{3}{25}$$

parthkohli · Answer

$$\Large {12 \over 100} = {3 \over 25} = C$$

anonymous · Answer

got it Thank you...