An instructor determines the number of students looking at Facebook or Twitter pages during five of her lectures. She would use a ______ to illustrate this data because this variable is measured at the ______ scale of measurement.
A) pie graph; interval
B) frequency polygon; nominal
C) histogram; ratio
D) bar chart; ordinal

Question

Quizplus · Accepted Answer

The best choice for this scenario is a histogram as it displays the distribution of continuous data with intervals or bins. The variable being measured is the number of students using social media, which is measured at the ratio scale of measurement as it has a true zero point (0 students using social media). A histogram is the preferred choice over a pie graph, frequency polygon, or bar chart because those are better suited for categorical or discrete data that are measured at lower levels of measurement (nominal or ordinal).

An Instructor Determines the Number of Students Looking at Facebook