Praxis Elem. Ed- Math(5003) Chpt 14 - Data Display Methods Quiz Questions

1. You gathered data at a clinic and entered your results into the frequency table shown below. Which of the following is the percentage of patients you found to have schizophrenia (round to the nearest tenth if necessary)? 6% 35.6% 25.4% 10.2%

10.2%

5. Using the stem-and-leaf display below, select the correct data set that corresponds to the display. 22, 1, 5, 6, 8, 4, 1, 7 57, 32, 32, 48, 17, 56, 48 17, 28, 32, 32, 48, 56 17, 28, 32, 48, 56 10, 7, 18, 22, 8, 16

17, 28, 32, 32, 48, 56

27. Susanne has a set of data she is using to create a histogram. If the set of numbers below is her data set, then which number in the data set will create the highest peak? 2, 2, 3, 5, 6, 7, 8, 6, 5, 2, 3, 4, 2, 5, 6, 2 8 2 6 5 7

2

7. Which of the following rows should be part of the stem-and-leaf display for the following data set? 1, 53, 22, 33, 22, 23, 32, 7 2 | 2 2 3 4 | 0 3 | 3 4 1 | 1

2 | 2 2 3

3. You gathered data at a clinic and entered your results into the frequency table shown below. A research journal wants to know how many people at the clinic have either depression or anxiety. Which of the following would you report to the journal? 15 32 21 17

32

2. Which of the following best describes a frequency distribution? The list of how much each variable affects another A list of how often items occur An interpretation of the effect of variables The relative strength and size of variables

A list of how often items occur

20. What does a pie chart look like? A chocolate bar Chopsticks A graph A pie

A pie

22. What is a graph of ordered pairs showing a relationship between two sets of data? Dependent variable Univariate data Bivariate data Scatterplot

Scatterplot

28. Which axis of a histogram usually shows the categories into which the various members of a data set fall? Either the x, y, or z axis The vertical axis Both the horizontal and the vertical axis The horizontal axis

The horizontal axis

23. What is a condition or piece of data in an experiment that can be controlled or changed? Dependent variable Correlation Independent variable Bivariate data

Independent variable

14. Using the box plot provided, what is the vertical line circled in red? Median Extreme minimum Interquartile range Quartile 1 Quartile 3

Quartile 3

11. What is this type of chart? Pie Chart Relative Frequency Table Frequency Table Bar Graph Histogram

Relative Frequency Table

9. If we're looking at a table where the last column contains decimal numbers between 0 and 1, what type of table are we looking at? Frequency Table Bar Graph Pie Chart It's impossible to say based only on this observation. Relative Frequency Table

Relative Frequency Table

6. A stem-and-leaf display is constructed for a set of numbers all less than 100. What should the stem in the stem-and-leaf display represent? The tens place The ones place Zeros It depends on what the choices of whoever made the stem-and-leaf display.

The tens place

13. Using the box plot provided, what is the vertical line circled in red? Median Quartile 3 Extreme minimum Quartile 1 Interquartile range

Median

18. In the pie chart below, is it written in an ideal order? No Yes

No

15. Why might we represent a data set with a box plot? Because we want to see the data set's quartiles, minimum, and maximum values on a number line. Because it's the only way to find the data set's mean. Because it's the only way to find the data set's median. Because we want to see the data set's quartiles and mean on a number line.

Because we want to see the data set's quartiles, minimum, and maximum values on a number line.

21. What is the relationship between two variables or sets of data? Correlation Dependent variable Bivariate data Independent variable

Correlation

19. The main use of a pie chart is to . . . . Show data about pet owners To show fractions Help in long division Make comparisons

Make comparisons

30. What is a visual representation of data where numbers on the left side of a chart show one part of each value, while numbers on the right side of the chart show the other? Dot plot Frequency polygon Histogram Stem-and-leaf display Frequency table

Stem-and-leaf display

8. If this stem-and-leaf display is based on the data set below, then what is TRUE about the stem-and-leaf display? 10, 12, 7, 1, 4, 13, 7, 6, 13 There are too many threes in the stem-and-leaf display. There is data missing in the stem-and-leaf display. There are too many sevens in the stem-and-leaf display. There should not be a zero in the one's rows for 2, 3, 4, and 5 in the stem-and-leaf display.

There should not be a zero in the one's rows for 2, 3, 4, and 5 in the stem-and-leaf display.

4. You gathered data at a clinic and entered your results into the frequency table shown below. You are going to find percentages for each symptom. Which of the following would you use as your total number of scores collected? 63 22 31 15

63

10. Can you identify this chart? Bar chart Pie Graph Relative Frequency Table Frequency Table Histogram

Frequency Table

12. A chart that shows the popularity or mode of a certain type of data is what? Line Graph Histogram Frequency Table Bar Graph Relative Frequency Table

Frequency Table

26. What is a graphical representation of the distribution of data? Pie chart Frequency table Range Cumulative frequency table Histogram

Histogram

24. How are independent variables and dependent variables different? The values of dependent variables can be calculated, while the values of independent variables are only experimental results. As an experimenter, you can directly change the value of a dependent variable, but the value of an independent variable depends on the outcome of the experiment. The values of independent variables can be calculated, while the values of dependent variables are only experimental results. As an experimenter, you can directly change the value of an independent variable, but the value of a dependent variable depends on the outcome of the experiment.

As an experimenter, you can directly change the value of an independent variable, but the value of a dependent variable depends on the outcome of the experiment.

29. Which of the following is a histogram also known by? Line graph Bar graph Frequency re-distribution Pie Graph

Bar graph

25. Histograms are very similar to what other graphical representation of numbers? Pie charts Bar graphs Box plots Frequency tables Cumulative frequency tables

Bar graphs

17. In the pie chart below, which activity takes up a quarter of the school day? In between classes Chatting with friends Pay attention to teacher Lunch

Chatting with friends

16. Using the box plot provided, what is the vertical line circled in red? Median Extreme minimum Interquartile range Quartile 1 Quartile 3

Extreme minimum