Question

Exercises1. A random sample of the 2000 students at an elementary school were surveyed about their favorite color. Based on the results in the graph, what the most reasonable inference about the number of students who chose pink their favorite color?

Answer 1

Case: Bar graphs

Method:

From the bar graph:

Red= 6

Blue= 12

Green= 8

Pink= 8

Total= 34.

Of the 2000 students surveyed:

Those who chose pink as their favorite color are:

`\begin{gathered} (8)/(34)*2000 \\ \approx470 \end{gathered}`

Final answer:

the most reasonable inference is that about 470 out of 2000 students chose pink as their favorite color. This is a little less than 1/4 of the entire school