Suppose there are 100 students in your accounting class, 10 of whom are left-handed. Two students are selected at random.

a. Draw a probability tree and insert the probabilities for each branch. What is the probability of the following events?

b. Both are right-handed.

c. Both are left-handed.

d. One is right-handed and the other is left-handed.

e. At least one is right-handed

f. Draw a probability tree and insert the probabilities of each branch

g. i)What is the probability of no right-handers

ii)one right-hander?

iii) two right-handers?

iv) and three right-handers?