The mean is a better measure of central tendency than the median when there are outliers. ...

The mean is a better measure of central tendency than the median when there are outliers.

Indicate whether the statement is true or false

Q. 2

The calendar year is an example of an interval scale of measurement.

Indicate whether the statement is true or false

Q. 3

A hospital finds that 20 of its accounts are at least 60 days in arrears. A random sample of 500 accounts was taken. What is the probability that fewer than 120 accounts in the sample were at least 60 days in arrears?

A) 0.9875
B) 0.4875
C) 0.5125
D) 0.0125

Q. 4

Interval estimates for the variance of a normal population rely on the random variable (n - 1)s2 / 2, which follows:

A) a normal distribution.
B) a binomial distribution.
C) the Poisson distribution.
D) a chi-square distribution.

Q. 5

Which of the following statements is true given that the events A and B have nonzero probabilities?

A) A and B cannot be both independent and mutually exclusive.
B) A and B can be both independent and mutually exclusive.
C) A and B are always independent.
D) A and B are always mutually exclusive.

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The mean is a better measure of central tendency than the median when there are outliers. ...

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