If three caps are picked at random, what is the probability that two are red and one is green ?
A). 9/22
B). 6/19
C). 1/6
D). 3/22
2. If two marbles are picked at random, what is the probability that both marbles are red ?
5. Formula to calculate standardized normal random variable is
8. In binomial probability distribution, dependents of standard deviations must includes
9. In random experiment, observations of random variable are classified as