1. An instructor's sample produces a mean number of days of absence of students 3.5 days. This value is an example of a:

A. parameter.

B. data.

C. statistic.

D. variable.

2. What type of data would be used to describe percent of body fat (in grams)?

A. Quantitative Discrete.

B. Quantitative Continuous.

C. Qualitative.

D. None of the above.

3. With relation to quartile, a median represents

A. first quartile.

B. second quartile.

C. third quartile.

D. fourth quartile.

4. In how many parts does a quartile divide a data set?

A. 1.

B. 2.

C. 3.

D. 4.

5. The difference between a bar graph and a histogram is that,

A. a histogram consists of contiguous rectangles but bar graph doesn't.

B. a bar graph consists of contiguous rectangles but histogram doesn't.

C. there is no difference between a histogram and a bar graph.

D. none of the above.

6. The difference between line graph and frequency polygon is that,

A. a line graph touches X axis at two points but frequency polygon doesn't.

B. a frequency polygon touches X axis at two points but a line graph doesn't.

C. there is no difference between a line graph and a frequency polygon.

D. none of the above. (over please)

7. Consider the following data set:

13, 15, 21, 17, 14, 22, 14, 16, 13, 16, 16, 17, 18, 14, 13

Which one of the following statements is true for the given data?

A. It has more than 2 modes.

B. Its mode cannot be determined.

C. It is unimodal.

D. It is bimodal.

8. If a mode appears more than three times in a data set, it is called

A. unimodal

B. bimodal

C. trimodal

D. multimodal

9. In a positively skewed histogram's data set

A.mean > median

B.mean < median

C.mean = median

D. there is no relationship between mean and median.

10. An example of time series data would be

A. a student's one-time scores of different subjects in a semester.

B. the daily weather temperature record of a country over a considerable period of time.

C. the consumer price index (CPI) of a country over a considerable period of time.

D. Both B & C.