Four students are to be selected at random from a group that consists of seven boys and
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Four students are to be selected at random from a group that consists of seven boys and x girls. The variables B and G are, respectively, the number of boys selected and the number of girls selected.
a. Given that P(B = 1) = P(B = 2), find the value of x.
b. Given that G ≠ 3, find the probability that G = 4.
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a Since the number of girls is x the total number of students in the group is 7 x To find ...View the full answer
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Related Book For 
Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook
ISBN: 9781108407304
1st Edition
Authors: Dean Chalmers, Julian Gilbey
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