If the outcomes of a discrete random variable follow a Poisson distribution, then their:

If the outcomes of a discrete random variable follow a Poisson distribution, then their:

A) mean equals the standard deviation.
B) mean equals the variance.
C) median equals the variance.
D) median equals the standard deviation.

Q. 2

A question in a survey asks for a respondent's favorite sport. Which measure of central tendency should be used to summarize this question?

A) arithmetic mean
B) geometric mean
C) median
D) mode

Q. 3

The probability that a person wants a vehicle navigation system but not better fuel efficiency is:

A) 0.90
B) 0.10
C) 0.45
D) 0.35

Q. 4

Ordinal data indicate the rank ordering of items, and similar to nominal data, the values are words that describe responses.

Indicate whether the statement is true or false

Q. 5

If a distribution is highly skewed, what measure of central tendency should be avoided?

A) arithmetic mean
B) median
C) mode
D) all of the above

Q. 6

What is the expected number of pieces of junk mail you receive daily?

A) 6.76
B) 1.61
C) 3.22
D) 2.60

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If the outcomes of a discrete random variable follow a Poisson distribution, then their:

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