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Probability

66. Ninety students will graduate from Lima Shawnee High School this spring. Of the 90 students, 50 are planning to attend college. Two students are to be picked at random to carry flags at the graduation.

a. What is the probability both of the selected students plan to attend college?
1. P (A) + P (B) =

b. What is the probability one of the two selected students plans to attend college?
1. P (A) + P (B) =

Solution Preview

1.
Since 50 plan to attend the college, the number of ways of selecting 2 from 50 is 50C2
Number of ways of selecting 2 from 90 students = 90C2
The ...

Solution Summary

Probability of students attending the college.

$2.19