alex.gellatly wrote:What is the probability that a student randomly selected from a class of 60 will be a male who has brown hair?
1. one half of the students have brown hair
2. one third of the students are males
Question rephrased : # of males with brown hair in the class ?
Statement 1
In the class 30 students have brown hair.
No information about the # no of males with brown hair
INSUFFICIENT
Statement 2
In the class 20 of the students are male
again no information about the # of males with brown hair.
INSUFFICIENT
Combining both the statements
Still the information is not sufficient, since the # of males with brown hair can vary from 0 to 20.
hence the correct answer is
E
