Answers
(a)
Vertical bar graph based on the data for all categories of students is shown below.
(b) Pareto Chart -
The frequency, cumulative frequency, percentage and cumulative percentage are given in tabular format as,
| Frequency | Cumulative Frequency | Percentage | Cumulative Percentage | |
| Freshman | 98 | 98 | 98/200 = 49% | 49% |
| Sophomores | 65 | 98+65 = 163 | 65/200 = 32.5% | 49+32.5 = 81.5% |
| Junior | 21 | 163 + 21 = 184 | 21/200 = 10.5% | 81.5+10.5 = 92% |
| Senior | 16 | 184 + 16 = 200 | 16/200 = 8% | 92 + 8 = 100% |
The pareto chart, based on cumulative frequency and cumulative percentage is shown below.
c) Circle graph
The frequency and percentage are given in tabular format as,
| Frequency | Percentage | |
| Freshman | 98 | 98/200 = 49% |
| Sophomores | 65 | 65/200 = 32% |
| Junior | 21 | 21/200 = 10% |
| Senior | 16 | 16/200 = 8% |
| Total | 200 | 100% |
Circle graph based on the precentages is,
Bar Chart of Students travelling taking city bus Freshman Sophomores Juniors Seniors
Pareto Chart of x 200 100% 80% 150 60% 100 40% 50 20% 0% び)
Pie Chart of Students travelling taking city bus Freshman 49% Seniors 10% Sophomores 32% Juniors 8%
.
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