Statistics

Statistics

12. Choose the correct mean for the data set (1, 1, 3, 4, 9, 2, 6, 3, 10, 1).

18. In a stem-and-leaf plot, the leaf must _____. a. Be the last digit of the number b. Be the first digit(s) of the number c. Never repeat

a. 1 b. 4 c. 3 d. 9

19. This type of graphical representation is similar to a histogram.

13. Choose the correct mode for the data set (1, 1, 3, 4, 9, 2, 6, 3, 10, 1).

a. Line graph b. Bar graph c. Scatter plot d. Pie chart

a. 1 b. 4 c. 3 d. 9

20. An item being investigated is referred to as a(n) what? a. Dependent variable b. Variable

14. Choose the correct median for the data set (1, 1, 3, 4, 9, 2, 6, 3, 10, 1).

a. 1 b. 4 c. 3 d. 9

c. Independent variable d. Normal distribution

21. A variable not subject to change is a(n) _______. a. Dependent variable b. Variable

15. Choose the correct range for the data set (1, 1, 3, 4, 9, 2, 6, 3, 10, 1).

a. 1 b. 4 c. 3 d. 9

c. Independent variable d. Normal distribution

22. A variable that changes in response to another variable is a(n) ________. a. Dependent variable b. Variable

16. Data (such as gender, relationship status, or blood type) that can be represented by a categorical number can be all of the following EXCEPT?

c. Independent variable d. Normal distribution

a. Quantitative b. Categorical c. Qualitative

23. To determine how exam scores change based on study time and student gender, it would be best to use which of the following? a. Crosstabulation and Chi-square b. Regression analysis

17. What is a graphical method to represent frequencies of the data set? a. Stem and leaf plot b. Boxplot c. Histogram d. Pie chart

c. Histogram d. Correlation

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