Practice: Ch 3, Describing Data Visually Selections

In a random survey of 500 people, 75 of the people stated that Klean laundry detergent was their preferred brand when compared to the other laundry detergents. If a pie chart of laundry detergent preferences is created, based on the aforementioned survey, what is the appropriate percent in the circle to represent the preference for Klean detergent _______

15%

A new dining plan was implemented in a residence hall at State University. Residents were asked to assess the new plan and give a grade of A, B, C, D, or F to the new dining plans. $82 total residents provided the following grades A, 234; B, 148; C, 87; D, 9; F, 4 _______ % of the grades were "B"s

30.7%

________ charts are used to sort out the vital few from the trivial many.

Pareto

One method of graphical presentation for qualitative data is a _______ _______.

bar chart.

The length of a bar or height of a column in a bar or column chart represents the ________ of a category

frequency

The length of a bar or height of a column is a bar or column chart represents the ________ of a category

frequency

A _________ is a type of graph that allows research to investigate the relationship between two variables.

scatter plot

A stacked column chart requires that the column height be a _____ of at least two subtotals

sum

The pictured graph from a New York Times op-ed piece has some misleading components to it; which of the following elements are misleading?

· All the ratings arrows end at the same point, regardless of the actual ratings. · The higher, by position, the category icon, the lower the rating

Which of the following statements is true

· Column or bar charts can be used to display time series data using the time periods as the category labels.

Characteristics of a bar chart include

· Display horizontal bars when the axis label are long or there are many categories · Length or height of bar frequency of a category

A log scale is useful for

· Financial data

Which of the following is NOT a tip for an effective table display?

· Heading should be detailed and complex in order to be as descriptive as possible

Which of the following graphical depictions are useful for observing the spread of the data for a sigle variable

· Histogram · Stem-and-leaf diagram · Polygon

A scatter plot shows

· Pairs of observations (x1, y1)... (xn, yn) on an X-Y graph · If an obvious association exists between two variables

Excel's pivot table feature

· Summarizes discrete numerical data · Summarizes categorical data · Allows interactive analysis

Which characteristic below is NOT a rule of thumb for displaying categorical data on a column chart?

· The height of each column should be the same

Which of the following is NOT a common error one should beware

· Unembellished charts that do not contain sounds or animation

Which of the following is NOT a common error in making graphs?

· Using a logarithmic scale

A line chart can be used to

· to spot trends, · to display time series data