Question

Your sock drawer has 4 pairs of pink socks, 2 pairs of white socks, and 7 pairs of black socks. What is the probability that if you choose at random withough replacement you will not choose black socks 2 days in a row? a 1/12b 2/13c 3/8d 5/26

Answer 1

SOLUTION:

Case: Probability

Method:

To select socks that are not black without replacement,

Since there are a total of 6 pairs that are not black (NB)

$\begin{gathered} Pr(NB) \\ =\frac{6}{13}\times\frac{5}{12} \\ =\frac{5}{26} \end{gathered}$

Final answer:

5/26