EM-3010
Mean
E Math · Secondary 4 · Medium · Mean
The table shows the marks of 40 students in a quiz.
Class interval: 10–19, 20–29, 30–39, 40–49
Frequencies: 4, 11, 15, 10
Using midpoints, find an estimate of the mean mark.
Class interval: 10–19, 20–29, 30–39, 40–49
Frequencies: 4, 11, 15, 10
Using midpoints, find an estimate of the mean mark.
- 32.25
- 32.0
- 33.0
- 34.5
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