# Probability of Random Selection

1. A ball is randomly selected from a jar containing 70 red balls, 20 green balls, and 10 blue balls. What is the probability that a non-red ball is chosen?

2. The students in the 12-member advanced communications design class at Center City Community College are submitting a project to a national competition. They must select a 4-member team to attend the competition. The team must have a team leader and a main presenter; the other 2 members have no particularly defined roles. In how many different ways can this team be formed?

© BrainMass Inc. brainmass.com October 10, 2019, 4:40 am ad1c9bdddfhttps://brainmass.com/math/probability/probability-random-selection-472068

#### Solution Preview

1. Probability of choosing a non-red ball = 1-probability of choosing a red ball.

The probability of choosing a red ...

#### Solution Summary

The expert examines the probability of random selection from a jar containing 7 red balls.

$2.19