Andrew has only one white and black socks in a drawer. The probability of him pulling out a black sock is 1/5. What is the likelihood of Andrew randomly pulling out a white sock?

4/5

Step-by-step explanation:

Andrew has just two possibilities: pulling out a white sock or pulling out a black sock.

If the probability of Andrew pulling out a black sock is 1/5, knowing that the sum of both probabilities need to be 1, we can calculate the probability of pulling out a white sock if the following equations:

Prob_white + Prob_black = 1

Prob_black = 1/5

So:

Prob_white + 1/5 = 1

Prob_white = 1 - 1/5 = 4/5

The probability of Andrew pulling out a white sock is 4/5.

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