You are here:

Basic Math/probability

Advertisement


Question
SOLVE

Your video tape collection contains 5 history, 6 science fiction and 3 adventure movies.If you pick two tapes, what is the probability that they are both adventure movies?


thank s

Answer
Hi David,

Probability is a fraction: # of 'winners' [outcomes that meet the conditions] over all possible outcomes.

For the 1st pick we have 3 winners / 14 outcomes
For the second pick, we have 2 remaining winners / 13 remaining outcomes

To find the complete probability multiply 3/14 * 2/13 = ?

Hope this is helpful. Write again whenever I can assist further.

Cindy M

Basic Math

All Answers


Answers by Expert:


Ask Experts

Volunteer


Cindy M

Expertise

I can help with math through algebra and geometry -- not trig and not calculus. I can help with fractions, percents, decimals, using other bases, word problems, etc.

Experience

I majored in math in high school and have scored very high on standardized tests.

Education/Credentials
Bachelor's of Arts degree

©2012 About.com, a part of The New York Times Company. All rights reserved.