Frequency Histogram
See how to make and read a frequency histogram.
2 examples and their solutions.
Frequency Histogram
Example
For the given test scores, make a frequency histogram.
Solution Interval | Frequency |
---|---|
50-59 | 2 |
60-69 | 3 |
70-79 | 7 |
80-89 | 6 |
90-99 | 2 |
Interval | Frequency |
---|---|
50-59 | 2 |
60-69 | 3 |
70-79 | 7 |
80-89 | 6 |
90-99 | 2 |
[2]
x-axis: Test score intervals
y-axis: Frequency
(frequency) = (height of the bar)
y-axis: Frequency
(frequency) = (height of the bar)
[3]
There should be no space between the bars.
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Example
For the given histogram,
find the number of students whose scores are less than 70.
Test ScoresFrequency
Solution find the number of students whose scores are less than 70.
3 + 6 = 9
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