Don has 4 black pens, 3 blue pens, and 2 red pens in his school bag. Don randomly picks two pens out of his school bag. 1. What is the probability that Don chose two blue pens, if he replaced the first pen back in his school bag before choosing a second pen? 2. What is the probability that Don chose black pens and red, if he replaced the first pen back in his school bag before choosing a second pen?
Don has 4 black pens, 3 blue pens, and 2 red pens in his school bag. Don randomly picks two pens out of his school bag. 1. What is the probability that Don chose two blue pens, if he replaced the first pen back in his school bag before choosing a second pen? 2. What is the probability that Don chose black pens and red, if he replaced the first pen back in his school bag before choosing a second pen?
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...
Related questions
Question
100%
Complete Solution
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Recommended textbooks for you
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON