# QNT351 FINAL EXAM ANSWERS (30-30-100%)

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

A. Interval

B. Ratio

C. Nominal

D. Ordinal

2. 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)

3. 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

A. Interval

B. Ratio

C. Nominal

D. Ordinal

2. 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)

3. 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

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