Final answer:
The probability that a sock pulled at random will be white is 5 white socks divided by 15 total socks, resulting in 1/3 or 5/15.
Step-by-step explanation:
The question involves finding the probability of an event occurring, which is a topic in Mathematics. To find the probability that a sock pulled from the dryer at random will be white, divide the number of white socks by the total number of socks. There are 5 white socks and 15 socks in total (4 + 5 + 6 = 15).
Probability of white sock = Number of white socks / Total number of socks
= 5 / 15
= 1 / 3
Therefore, the correct answer is C. 5/14, which is a typo as it should be 1/3 or 5/15.