The probability of choosing 2 girls at random from group of 25 students of which
10 are girls and 15 are boys is:
P( 2 girls) = (10/25)∙(9/24) = 3/20 = 0.15 = 15%
4/8 x 3/5
12/21 or 4/7
I am not going to help you cheat in math class!!!!!!!!!!!!!
1/35
this is 15/91
The ratio of girls to total students is 15:25, or 3:5. Three out of five students are girls so there would be a 60% probability that a girl would be chosen; a 2 out of 5 chance, or 40% probability that a boy would be chosen.
The probability is 15/25 = 3/5
The probability is 15/25 = 3/5
4/8 x 3/5
If the choice is unbiased, the change is 14/(10+14). If the chooser prefers choosing boys, the probability is 0.
13 out of 20
4 in 7 chance
1-30
3-7
12/21 or 4/7
The probability is the number of girls divided by the number of students, so 12/22, or 6/11
I am not going to help you cheat in math class!!!!!!!!!!!!!