A bag contains 10 red pens and 5 blue pens. If a student picks 2 pens from the bag, find the probability that both the pens are of different colour.

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...
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A bag contains 10 red pens and 5 blue pens. If a student picks 2 pens from
tne bag, find the probability that both the pens are of different colour.
Transcribed Image Text:A bag contains 10 red pens and 5 blue pens. If a student picks 2 pens from tne bag, find the probability that both the pens are of different colour.
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