a) all are males? (b) three are males and two are females? c) two are females and three are males? (d) all are of the same sex?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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In a family of 5 children, what is the probability that

(a) all are males?

(b) three are males and two are females?

c) two are females and three are males?

(d) all are of the same sex?

 

Hint: For b) and c), one solution involves using this formula (see p. 55-56 of your textbook):

 

P = (asbt) n! / (s!t!) where n= the total number of events

s= the number of times outcome a occurs

t= the number of times outcome b occurs

a = chance of outcome a

b = chance of outcome b

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