I got 30/30: 100%

1. What level of measurement is the number of auto accidents reported in a given month?

A. Interval

B. Ratio

C. Nominal

D. Ordinal

1. If two events A and B are mutually exclusive, what does the special rule of addition state?

A. P(A or B)P(A)-P(B)

B. P(A and/or B)P(A)P(B)

C. P(A or B)P(A)P(B)

D. P(A and B)P(A)P(B)

1. For any data set, which measures of central location have only one value?

A. Mode and standard deviation

B. Mode and mean

C. Mean and median

D. Mode and median

1. What is the variable used to predict the value of another called?

A. Independent variable

B. Correlation variable

C. Variable of determination

D. Dependent variable

1. A null hypothesis makes a claim about a

A. Type II error

B. Population parameter

C. Sample statistic

C. Sample mean

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