P(black socks): 24/42 or 12/21
P(black socks without replacing): 23/41. As a result, the probability of randomly picking 2 black socks, without replacement, from the basket is 12/21×23/41=276/861 or 32%. Hope it help!
Answer:
39 / 10
Step-by-step explanation:
3.9
= 3.9 x 10 / 10
= 39 / 10
7%=0.7 14.5×.07=1.01500. 1.01500 1.02. 14.50+1.02=$15.52.
The mean of the probability distribution is given by the expected value given by

The variance of the probability distribution is given by

The standard deviation is given by