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PRM Certification - Exam II: Mathematical Foundations of Risk Measurement Questions and Answers

Question 17

Kurtosis(X) is defined as the fourth centred moment of X, divided by the square of the variance of X. Assuming X is a normally distributed variable, what is Kurtosis(X)?

Options:

A.

0

B.

3

C.

2

D.

1

Question 18

A biased coin has a probability of getting heads equal to 0.3. If the coin is tossed 4 times, what is the probability of getting heads at least two times?

Options:

A.

0.7367

B.

0.3483

C.

0.2646

D.

None of these

Question 19

For a quadratic equation, which of the following is FALSE?

Options:

A.

If the discriminant is negative, there are no real solutions

B.

If the discriminant is zero, there is only one solution

C.

If the discriminant is negative there are two different real solutions

D.

If the discriminant is positive there are two different real solutions

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