The table summarizes the number of mobile phones per 100 people in the population of each of the countries with at least 100 mobile phones per 100 people. Construct a frequency histogram of the number of mobile phones per 100 people.
Number of Mobile Phones Number of
per 100 People Population Countries
100-119..............................................20
120-139..............................................14
140-159................................................6
160-179................................................2
180-199................................................1
200-219................................................1