Probability and Statistics Review

Question 1

What is Pr{X <= 1}

Accepted Answer

0.8

Question 2

What is the name of this distribution?

Accepted Answer

Uniform

Question 3

What is this distribution?

Accepted Answer

Weibull, Exponential

Question 4

We know that the random variable with the following PDF is

Accepted Answer

a continuous random variable

Question 5

The number of defective parts in a lot of size 20 is

Accepted Answer

discrete

Question 6

What is this distribution?

Accepted Answer

Triangular

Question 7

Continuous random variable:

Accepted Answer

0.5

Question 8

Customer's service time is

Accepted Answer

continuous

Question 9

A random variable has four possible outcomes {0, 1, 2, 3}. It is.....

Accepted Answer

a discrete random variable

Question 10

Discrete random variable:

Accepted Answer

12/8, 1.5, 6/4

Questions 10