Question

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? Be sure to show your work.

Answer 1

There are 10 socks total. There are 3 blue socks. The probability that the first one will happen is 3/10. Since it is replaced, the second one is still out of 10. THere are 4 red socks. 4/10 or 2/5. Then multiply them because they are happening in succession. 3/25 is the result.

Answer 2

Thank you! Since you exmplained it also it makes since ! Now I can do my big test without stuggling.