1.
The length of time a consumer waits for a credit card authorization, is
an example of a ___________ random variable.
a.
Continuous
b. discrete
2.
Which of the following concerning the probability distribution of a
discrete
random variable false?
a.
Each f(x)> 0
b.
E f(x)= 1.0
c.
E (x) =1.0
d.
E (x) = E xf(x)
3.
Point estimates based on simple random samples almost always differ
somewhat from the corresponding population parameters.
What do
statisticians assume to be the main cause of these differences?
4.
Which of the following is false
concerning the normal distribution?
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5.
Which of the following is true
concerning the finite population
correction factor?
population is finite and the sample is a relatively large
proportion of the population
A simple random sample
of traffic tickets issued over a 5 month period
by the Port Allen Police Department is shown here: {94, 100, 85, 94, 92}
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 Fall '08
 Nunnery
 Normal Distribution, Standard Deviation, food market, Port Allen Police Department

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