Question
A room contains 80 sophomores of which 39 are males and 41 are females. There are also 69 juniors of which 36 are males and 33 are females. You pick 3 students at random. What is the probability that all 3 are males?
Answers
total males: 39+36=75
total students: 80+69=149
you are basically just selecting without replacement, so
P(3 males) = 75/149 * 74/148 * 73/147
total students: 80+69=149
you are basically just selecting without replacement, so
P(3 males) = 75/149 * 74/148 * 73/147
Related Questions
A group of students who are selecting 2 of their group at random to give a report, but assume that t...
In order for a population to survive, sexual reproduction must produce
Responses
A more females th...
Sex ratios of births are skewed if they differ significantly from the naturally occurring human birt...