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1.
are they data errors or simply unusual data values?: Watch the outliers -

2.
A bar chart with two specific features: Heights of bars represent frequencies. Bars are vertical and are ordered from tallest to shortest.: Pareto Chart

3.
By looking at the stem-and-leaf display "sideways", we can see the ? of the data.: Distribution shape

4.
Data values that are very different from other values in the data set. may indicate data recording errors: Outliers

5.
Displays how a total is dispersed into several categories.: Circle graphs

6.
Displays the distribution of the data while maintaining the actual data values.: Stem & Leaf Plot

7.
Graphical summary of a frequency table. Find the class limits. The lower limit of the "leftmost" class is set equal to the smallest value in the data set.: Histogram

8.
These graphs are useful for quantitative or qualitative data.: Bar graphs

9.
Identify the frequency in decreasing order.: Pareto Charts

10.
An interval of values. Example: 61 £ x £ 70 organizes quantitative data. organizes quantitative data. partitions data into classes (intervals).shows how many data values are in each class.: Class:

11.
Is basically an interval on a number line.: A "data class"

12.
Large gaps between stems containing leaves, especially at the top or bottom, suggest the existence of: outliers

13.
Might indicate that the data are from two different populations.: A bimodal distribution shape

14.
The number of data values that fall within a class.: Frequency:

15.
The proportion of data values that fall within a class.: Relative Frequency:

16.
Shows data measurements in chronological order. Data are plotted in order of occurrence at regular intervals over a period of time.: Time Series

17.
Used for qualitative data Wedges of the circle represent proportions of the data that share a common characteristic. "Good practice" requires including a title and either wedge labels or legend.: Pie Chart

18.
Used for qualitative or quantitative data. Can be vertical or horizontal. Bars are uniformly spaced and have equal widths. Length/height of bars indicate counts or percentages of the variable. "Good practice" requires including titles and units and labeling axes.: Bar Graphs

## CSCC Math 135 Chapter 2Study online at quizlet.com/_5hlna |

table

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