Posted by **makeeda** on Friday, January 29, 2010 at 9:16am.

a sock drawer has 2 blue pair, 4 white pairs, 4 black pair. what is the probability you will pick out a white pair or blue pair? you replace each pair after your pick

i think it 4/10 im not for sure

- math -
**drwls**, Friday, January 29, 2010 at 9:24am
Do you pick two? If you are trying for a matched pair, why would you replace the first one?

There are a total of 20 socks. You can either pick white and then white, or blue and then blue. Add the two probabilities.

(8/20)^2 + (4/20)^2

= (2/5)^2 + (1/5)^2

= 5/25 = 1/5

## Answer this Question

## Related Questions

- math - a sock drawer has 2 blue pair, 4 white pair, 4 black pair. what is the ...
- math - a sock drawer has 2 blue pair,4 white pair,4 black pair? what is the ...
- math - Yosuf has three grey socks and four blue socks in his sock drawer. He ...
- Math - There are 22 gloves in a drawer. 5 brown pair, 4 green pair, and 2 blue ...
- Math - You are about to leave for vacation, but you forgot your socks! You go ...
- Math Check - Let’s say you have a bedroom drawer that contains about 2 red socks...
- math - a sock drawer contains 10 white socks, 6 black socks, and 8 blue socks. ...
- English - Could you please check if everything is ok? It's really urgent. 1)The ...
- Algebra - You have a very messy sock drawer with 3 blue socks, 5 black socks, ...
- Math - There are 6 pairs of black socks and 6 pairs of white socksWhat is the ...

More Related Questions