Mathematics · Mean
The following frequency distribution shows the literacy rate of some cities: Literacy rate (in %): 25 - 35 | 35 - 45 | 45 - 55 | 55 - 65 Number of cities: 6 | 5 | 4 | 1 Find the mean literacy rate of all the cities.
- 136
- 240✓
- 328
- 432
Correct answer
40
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