1) Mutually exclusive events exist if only one of the events can occur on any one trial
a) True
b) False
2) Stating that two events are statically independent means that the probability of one event occurring is independent of the probability of the other event having occurred
a) True
b) False
3) A posterior probability is a ______________________ probability
4) Bay's theorem enables us to calculate the __________________ that one event takes place ________________ that a second event has or has not taken place
5) The general rule of probability of a union of two events is sometimes known as the _________ rule
a) Additive
b) Multiplicative
c) Normal
d) Summative
6) The expected value of a binomial distribution is expressed as np, where n equals the number of trials and p equals the probability of success of any individual trial
a) True
b) False
7) The standard deviation equals the square of the variance.
a) True
b) False
8) Define the following:
X =
µ =
S =
Z =
9) The F static is the ratio of two sample standard deviations from independent normal distributions.
a) True
b) False
10) A discrete random variable has a mean of 400 and variance of 64. What is the standard deviation?
a) 20
b) None of the above
c) 64
d) 400
e) 8