The ratio of females to males in the freshman class at a local private school is 2 to 3. a)  What fraction of the students are female? b)  What percent of the students are male? c)  If there are 55 students in the freshman class, how many are female? d)  If there are 28 females in the freshman class, how many males are in the class? e)  If a student from the freshman class is selected at random, what is the probability that they are female?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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  1. The ratio of females to males in the freshman class at a local private school is 2 to 3.

    1. a)  What fraction of the students are female?

    2. b)  What percent of the students are male?

    3. c)  If there are 55 students in the freshman class, how many are female?

    4. d)  If there are 28 females in the freshman class, how many males are in the class?

    5. e)  If a student from the freshman class is selected at random, what is the probability that they are female?

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