Statistics, Probability ! Help!

by Calculator14
Tags: probability, statistics
Calculator14 is offline
Jul6-11, 02:23 PM
P: 30
1. The problem statement, all variables and given/known data

The probability that Joe owns a microwave oven is 75%; the probability that he owns a CD player is 45%; and the probability that he owns both is 40%. Find the probability that he owns either one but not both.

2. Relevant equations

(work posted below)

3. The attempt at a solution

P(only microwave)= .75-.4 = .35
P(only CD Player) = .45 - .4 = .05
P(only micr. or CD Pl) = .35 + .05 = .4

Answer = .4
Phys.Org News Partner Science news on
Lemurs match scent of a friend to sound of her voice
Repeated self-healing now possible in composite materials
'Heartbleed' fix may slow Web performance
obafgkmrns is offline
Jul6-11, 03:49 PM
P: 126
You got it! Try visualizing it with a Venn diagram: 2 overlapping circles representing probabilities that he owns either or both, surrounded by a large circle that represents probability that he owns either, both, or neither. (Hint: probability he owns neither is 0.2)

Register to reply

Related Discussions
statistics, probability ! Help! Engineering, Comp Sci, & Technology Homework 3
statistics, probability Engineering, Comp Sci, & Technology Homework 2
Probability & Statistics: Order Statistics Calculus & Beyond Homework 2
Probability (Statistics) Precalculus Mathematics Homework 1
Statistics Probability - How do I do this? Set Theory, Logic, Probability, Statistics 1