Question

Sasha has a bag of 1 red sock,1 blue sock,1 white sock and , 1 green sock.She pulls a sock out of the bag without looking,put's it back, and pulls another sock out without looking. What is the probability that she will pull out a white sock both times?

1. 188
2. 1/9
3. 1/16
4. 1/24

Answer 1

HI!!

Answer 2

You have 4 socks total, in which one of them is white, thereby giving you the fraction: 1/4.

Thereby, the chance that Sasha will pull out a white sock on her first try is 1/4.

Next, she tries again after putting the white sock back.

There's a total of four socks again, thus giving us the exact same probability as before: 1/4.

However, Sasha needs two white socks pulled out consecutively.

Thus, what's the probability of getting two white socks in a row? You must then multiply the probability of getting white sock in try #1 and white sock in try #2.

Answer 3

thank you