There are 6 black socks and 4 white socks in a drawer. If one sock is taken out without looking and then a second is taken out, what is the probability that they both will be black?
Mathematics · College · Mon Jan 18 2021
Answered on
Formula:
Probability = favorable outcome/ Total outcome
Number of black socks = 6
Number of white socks = 4
So, Total = 6 + 4 = 10
Now, probability of drawing black sock = 6/10
= 3/5 or 0.6
Now, remaining number of black socks = 5
So, Total = 5 + 4 = 9
Now, probability of drawing balck sock = 5/9
probability of drawing both black socks = 3/5 × 5/9
= 1/3 or 0.33
Hence, probability of getting black socks both the time is 1/3 or 0.33