In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected, is:
A). 21/46
B). 1/5
C). 3/25
D). 1/50
1. In binomial probability distribution, dependents of standard deviations must includes
2. In a binomial probability distribution it is impossible to find
5. From a pack of 52 cards, 1 card is drawn at random. Find the probability of a face card drawn.
7. If three unbiased coins are tossed simultaneously, then the probability of exactly two heads, is