а.

b

C. d.

11. a. b.

C. d.

2.04

2.02

2.03

2.01

9.14

9.12

9.13

9.15

What is the mean of the given data set? 10; 12; 9; 8; 11; 9; 6; 12; 10; 7; 8; 6; 12; 9; 8

Which is the shape of the given data set? 10; 12; 9; 8; 11; 9; 6; 12; 10; 7; 8; 6: 12; 9: 8

a. b.

C.

left skewed symmetrical

Right skewed

Which is the range in the given data set? 10; 12; 9; 8; 11; 9; 6; 12; 10; 7; 8; 6: 12; 9: 8

b.

C. d.

8

9

6

12

14. Which is the variance in the given data set? 10; 12; 9; 8; 11; 9; 6; 12; 10; 7; 8; 6; 12; 9; 8

b.

C. d.

4.38

4.39

4.40

4.47

15. a. b.

C. d.

Which does NOT belong to the group?

Interquartile range

50* Percentile

Second Quartile

Median

16. Which of the following is TRUE?

z-score helps identifies outliers in a set of data

If the mean<median, the data are positively skewed

Another term for independent variable is predicted variable

All of the above

17. Which of the following is not TRUE? a. Interval has no true zero value.

b. . Parametric refers to the numerical characteristics that describe a population Descriptive statistics are used to summarize and present data to graphical or textual form.

C. d.

None of the above

18. Which of the following is NOT True?

а.

Parameter refers to numerical characteristics that describe the population.

b.

Results of Descriptive statistics Ocan be generalized and apply to a large number of groups.

C. d. e.

Ratio has true zero value.

All of the above

None of the above

d.

19. Which of the following IS TRUE? Statistic refers to the numerical characteristic that describe a sample

b.

Conclusions drawn from inferential statistics cannot be generalize

Ratio has no true zero value.

All of the above

None of the above