6. (単洗題 3.0分)A box contains 5 green pencils and 7 yellow pencils. Two pencils are chosen at random from the box withoutreplacement. What is the probability they are both yellow?A7/12B6/117/2249/144сD

The total number of pencils =5+7=12 Let event A: The first pencil chosen yellow.P(A)=C17C112=712Let…

Answered: A box contains 5 green pencils and 7…

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 box contains 5 green pencils and 7 yellow pencils. Two pencils are chosen at random from the box without replacement. What is the probability they are both yellow? A 7/12 B 6/11 7/22 49/144 с D