Assume you have a basket full of socks, which have the following properties:
6 of the socks have blue stripes
8 of the socks have red polka dots
16 of the socks have blue polka dots
10 of the socks have red stripes
(a). If you take one sock out of the basket, what is the probability that it is red?
(b). What is the probability that a sock pulled from the basket has stripes?
(c). What is the probability that a sock pulled from the basket is either striped or blue?
(d). You select two socks from the basket, without replacement. What is the probability that the first one will have blue polka dots and the second one will have red stripes?
(e). You select two socks, without replacement. What is the probability that they will not match?
1 answer
(a) looks like zero to me. Just because a sock has (possibly quite small) red dots or stripes does not make me want to call it "red."
3 answers