Information Ordering and Visualization Flashcards

A scatter plot comparing officer years of experience (x-axis) against number of commendations (y-axis) shows a cluster of points rising from left to right. What does this pattern indicate?

Answer: Officers with more experience tend to receive more commendations

A left-to-right upward cluster indicates a positive correlation — as experience increases, commendations tend to increase as well.

A civil service exam roster lists candidates in the following order: Williams, Nguyen, Martinez, Johnson, Chen. What ordering principle was used?

Answer: Reverse alphabetical by last name

The names descend from W to C, which is reverse (Z-to-A) alphabetical order by last name.

A flowchart for processing a permit application contains a diamond-shaped decision box labeled 'Is the application complete?' with YES and NO branches. What does the diamond shape specifically represent?

Answer: A decision point requiring a yes/no or true/false answer

In standard flowchart notation, a diamond shape always represents a decision point with two or more possible paths.

A supervisor must rank five employees by performance score from highest to lowest: Rivera (88), Thompson (92), Okafor (88), Lee (95), Patel (79). How should Rivera and Okafor be ordered relative to each other?

Answer: Okafor before Rivera because O comes before R alphabetically

When scores are tied, a common tiebreaker is alphabetical order by last name; O (Okafor) comes before R (Rivera).

A histogram shows the distribution of response times (in minutes) for emergency calls. Most bars are clustered between 4–8 minutes, with a long tail extending to 30 minutes. What does this distribution shape indicate?

Answer: The data is skewed right, with most calls responded to quickly but some taking much longer

A long tail to the right indicates right skew — the majority of values are low, but a few extreme high values pull the tail out.

A records clerk must file documents using the following rule: numbers before letters, then alphabetically. Where does the file labeled '7B-Housing' belong relative to 'B7-Housing' and 'A-Housing'?

Answer: Before A-Housing

The rule places numeric-prefixed files before alphabetic-prefixed files, so '7B-Housing' comes before 'A-Housing' and 'B7-Housing'.

Which of the following best describes the purpose of adding a data label directly onto a bar in a bar chart?

Answer: To allow the reader to read the exact value without consulting the y-axis scale

Data labels display the precise numeric value on or near a bar, eliminating the need to estimate from the y-axis gridlines.