Use the following table to answer Question 1 This table depi
Use the following table to answer Question 1. This table depicts the scores of 35 students on an exam worth 100 points.
Use the information in the table to determine the percentages for each interval. Depending on your rounding
decisions, these may or may not add up to exactly 100% but should be very close
Score Interval
Frequency
Percentages for each Interval
90-100
9
?
80-89
8
?
70-79
8
?
60-69
3
?
50-59
4
?
40-49
2
?
30-39
1
?
TOTAL
?
?
| Score Interval | Frequency | Percentages for each Interval |
| 90-100 | 9 | ? |
| 80-89 | 8 | ? |
| 70-79 | 8 | ? |
| 60-69 | 3 | ? |
| 50-59 | 4 | ? |
| 40-49 | 2 | ? |
| 30-39 | 1 | ? |
| TOTAL | ? | ? |
Solution
Score
Frequency
Percentages for each interval
90 – 100
9
25.7143
80 – 89
8
22.8571
70 – 79
8
22.8571
60 – 69
3
8.5714
50 – 59
4
11.4286
40 – 49
2
5.7143
30 – 39
1
2.8571
Total
35
99.9999
Formula = (frequency/total) * 100
Example = (9/35) * 100 = 25.7143
| Score | Frequency | Percentages for each interval |
| 90 – 100 | 9 | 25.7143 |
| 80 – 89 | 8 | 22.8571 |
| 70 – 79 | 8 | 22.8571 |
| 60 – 69 | 3 | 8.5714 |
| 50 – 59 | 4 | 11.4286 |
| 40 – 49 | 2 | 5.7143 |
| 30 – 39 | 1 | 2.8571 |
| Total | 35 | 99.9999 |


