Information Ordering and Visualization Flashcards

A city department tracks monthly service requests using a dual-axis chart: bars show total requests (left axis) and a line shows average resolution days (right axis). In June, the bars are the tallest but the line is at its lowest point. What can be concluded?

Answer: June had the most requests and the fastest resolution time

The tallest bars mean highest request volume, and the lowest line means fewest average resolution days — both extremes in June indicate high volume handled quickly.

An employee must sort the following mixed list in the order: symbols first, then numbers, then letters — all ascending within each group. List: B, 3, #, A, 1, @. What is the correct order?

Answer: #, @, 1, 3, A, B

Symbols ascending (# before @), then numbers ascending (1, 3), then letters ascending (A, B).

A Gantt chart is used in a city construction project. What specific type of information does a Gantt chart most effectively communicate?

Answer: The overlap and duration of project tasks over time

Gantt charts are specifically designed to show task durations and scheduling overlaps across a project timeline.

A clerk notices that in a sorted alphabetical list, the name 'MacDonald' appears after 'Mabry' but before 'Madison.' Is this placement correct?

Answer: Yes, because 'Mac' sorts as written, placing it between 'Mab' and 'Mad'

Under standard letter-by-letter alphabetizing, 'Mac' is sorted exactly as written — M-A-C — which places it between 'Mab' and 'Mad.'

A heat map of NYC 311 complaints displays borough neighborhoods colored from light yellow (few complaints) to dark red (many complaints). A supervisor notices that three neighborhoods in Brooklyn appear dark red. What action is most directly supported by this visualization?

Answer: Targeting those three Brooklyn neighborhoods for increased service or investigation

Heat maps highlight geographic hotspots, directly indicating where resources or attention should be concentrated.

A form requires an employee to enter dates in MM/DD/YYYY format. An employee submits '8/5/26' for August 5, 2026. What is wrong with this entry?

Answer: The month and day are not zero-padded, and the year is abbreviated

The required format MM/DD/YYYY needs two-digit month (08), two-digit day (05), and four-digit year (2026), making the correct entry 08/05/2026.

An analyst compares two precincts using side-by-side bar charts over 12 months. Precinct A's bars are consistently taller than Precinct B's. In October, Precinct B's bar is taller. What is the MOST appropriate interpretation?

Answer: October represents an anomaly for Precinct B that warrants further investigation

A single reversal in an otherwise consistent pattern is an anomaly that should be investigated before drawing lasting conclusions.