Question

Mrs. Griese's business class has 107 students, classified by academic year and gender, as illustrated inthe following table. Mrs. Griese randomly chooses one student to collect yesterday's work. What isthe probability that she selects a female, given that she chooses randomly from only the juniors?Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth

Answer 1

Solution:

From the table,

Total students that are juniors = 11 + 8 = 19

Female students that are juniors = 8

The probability that she selects a female, given that she chooses randomly from only the juniors = 8/19

The answer is 8/19