Question

Mrs. Burke's biology class has 128 students, classified by academic year and major, as illustrated in the table. Mrs. Burke randomly chooses one student to collectyesterday's work.Mrs. Burke's Biology ClassAcademic Year Biology MajorsFreshmenSophomoresJuniorsSeniors19171617Non-Biology Majors17141018Step 2 of 2: What is the probability that she selects a senior, given that she chooses a biology major? Enter a fraction or round your answer to 4 decimal places, ifnecessary.

Answer 1

Total: 128 students

1. The probability that she selects a senior, given that she chooses a biology major is given by:

`P=\frac{seniors}{biolog\text{y majors}}=(17)/(19+17+16+17)=(17)/(69)=0.2464`

Answer: 0.2464