Question

A dentist selected 16 patients at random from a population of more than 1000 patients and asked them how many times the patient flosses per week. The dentist made a line plot of the results.
What is the estimated mode of the number of times all patients floss per week?

5

5.5

6

7

Answer 1

The mode is the number that apppers the most on any graph.

0 appears twice
1 doesn't appear at all
2 appears once
3 appears once
4 doesn't appear at all
5 appears four times
6 appears three times
7 appears five times
8, 9, or 10 do not appear on the graph at all

So to find the mode we find the number that appears on the graph the most, the number that appears on the graph the most is 7, it appears 5 times, so 7 is the mode of this graph.