Question 1
Mutually exclusive events exist if only one of the events can occur on any one trial.
 Â
A) True
Â
B) False
Question 2
Stating that two events are statistically independent means that the probability of one event occurring is independent of the probability of the other event having occurred.
 Â
A) True
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B) False
Question 3
A posterior probability is aÂ
___revised __Â
 probability.
Â
Question 4
Bayes' theorem enables us to calculate theÂ
___Â
 that one event takes placeÂ
___ ___Â
 that a second event has or has not taken place.
Question 5
The general rule for probability of a union of two events is sometimes known as the _________ rule.
Â
A) Multiplicative
Â
Â
B) Normal
Â
 Â
C) Additive
Â
Â
D) Summative
Â
Question 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.
 Â
A) True
Â
B) False
Question 7
The standard deviation equals the square of the variance.
Â
A) True
 Â
B) False
Question 8
Define the following:Â
(Hint: See chapter 2, using the standard normal table")Â
X =Â
___ ___ Â
Â
µ =Â
___mean of the distribution___Â
Â
s =Â
___standard deviation___Â
Â
Z =Â
___Â
Â
Question 9
The F statistic is the ratio of two sample standard deviations from independent normal distributions.
Â
A) True
 Â
B) False
Question 10
A discrete random variable has a mean of 400 and a variance of 64. What is the standard deviation?
 A) 8
Â
B) 64
Â
C) 400
Â
D) None of the above
Â
E) 20
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Answers
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Posted 02 Aug 2017 12:08 PM
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MA6-----------600----------- Qu-----------iz -----------1-----------
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file 1501676580-MA6600 Quiz 1.docx preview (261 words )
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