CFA Practice Question

There are 410 practice questions for this study session.

CFA Practice Question

Roll a die and flip a coin, P(5 OR heads) = ______.

A. 5/12
B. 1/12
C. 7/12
Correct Answer: C

P(5) = 1/6, P(heads) = 1/2, P(A and heads) = 1/6 x 1/2 = 1/12
P(5 or heads) = P(5) + P(heads) - P(5 and heads) = 7/12

User Contributed Comments 6

User Comment
eejo 1/6 + 1/2 -1/12= 2/12 + 6/12 - 1/12= 8/12-1/12= 7/12
morek why are these not mutually exclusive?
Vikku morek, bcoz they are independent events. A 5 & a head, both can happen together.
olagbami @ morek....p(5 and head) is greater than zero, so they are both mutually exclusive events.
khalifa92 mutually exclusive not-
Mheaton37 Heads is a 50% chance, adding another event on top of that with "or" would mean 5/12 and 1/12 are automatically eliminated as answers.
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