Purchase Solution

Probability - Balls

Not what you're looking for?

Ask Custom Question

A box contains 7 red, 3 green and 5 blue balls.

a) If one ball is drawn at random, find the probability it is red.

b) If two balls are drawn, find the probability both are green

c) If two balls are drawn, find the probability one is red and the other is blue

d) If two balls are drawn, find the probability both are red or both are green.

e) If two balls are drawn, find the probability at least one is red.

Purchase this Solution

Solution Summary

There are several probability questions regarding drawing different colored balls.

Solution Preview

Total number of balls: 7 + 3 + 5 = 15
Assuming no replacement:
a) P(ball is red) = 7/15
b) P(both are green) = (3/15)*(2/14)
= 6/210
= ...

Purchase this Solution


Free BrainMass Quizzes
Probability Quiz

Some questions on probability

Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

Know Your Linear Equations

Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.

Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.

Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.