SOLUTION: A class consists of 25 students. 15 have blue eyes, 9 have fair hair, and 2 have both blue eyes and fair hair. ai.) Hence, find the probability that a randomly selected student

Algebra ->  Probability-and-statistics -> SOLUTION: A class consists of 25 students. 15 have blue eyes, 9 have fair hair, and 2 have both blue eyes and fair hair. ai.) Hence, find the probability that a randomly selected student      Log On


   

Question 1103601: A class consists of 25 students. 15 have blue eyes, 9 have fair hair, and 2 have both blue eyes and fair hair.
ai.) Hence, find the probability that a randomly selected student from the class has fair hair, given that he or she has blue eyes.
aii.) Hence, find the probability that a randomly selected student from the class does not have fair hair, given that he or she doesn't no have blue eyes.
Found 2 solutions by ikleyn, Boreal:
Answer by ikleyn(52767) About Me  (Show Source):
You can put this solution on YOUR website!
.
First step to getting help is to write your assignment correctly,

which means that EVERY word is correct and is on its correct place.

So, double check your post (each word).



Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
=========BE====NOBE==TOTAL
FH--------2----7------9
NOFH-----13----3-----16
TOTALS---15----10----25
Given blue eyes (15) probability of fair hair is 2/15
Given no blue eyes (10) probability of no fair hair is 3/10