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3 votes
Below, a two-way table is given

for a class of students.
Male
Female
Total
Freshman Sophomore Junior
4
6
2
3
4
6
P(female freshman):
Senior
2
3
Find the probability the student is a female,
given that they are a junior.
***
P(female and freshman)
P(freshman)
Total
=
[?]%

User JNat
by
8.1k points

1 Answer

2 votes

Answer:

0.3

Explanation:

P(female and junior) = (3/6) = 0.5 P(female|junior) = P(female and junior) / P(junior) P(junior) = (2+3)/(4+6+2+3) = 5/15 P(female|junior) = 0.5 / (5/15) P(female|junior) = 0.3

User Artur Movsesyan
by
8.2k points