A test was given to a group of students. Their grades and reactions are summarized below: A B C Total Grumpy 15 3 13 31 Happy 16 2 12 30 Total 31 5 25 61 If one student is chosen at random, find the probability that the student got a 'C' GIVEN they are happy. 30/61 5/30 12/61 12/30

A test was given to a group of students. Their grades and reactions are summarized below: A B C Total Grumpy 15 3 13 31 Happy 16 2 12 30 Total 31 5 25 61 If one student is chosen at random, find the probability that the student got a 'C' GIVEN they are happy. 30/61 5/30 12/61 12/30

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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Question

A test was given to a group of students. Their grades and reactions are summarized below:

	A	B	C	Total
Grumpy	15	3	13	31
Happy	16	2	12	30
Total	31	5	25	61

If one student is chosen at random,

find the probability that the student got a 'C' GIVEN they are happy.

30/61
5/30
12/61
12/30

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