Direction: The histogram, given below, shows the number of families of a locality having various daily incomes, as obtained by a survey. Observe the graph and answer the questions based on it.
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In all, how many families were surveyed?
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- 235
- 220
- 200
- 195
Correct Option: C
Number of families who have daily income interval 0-100 = 15
Number of families who have daily income interval 100-200 = 10
Number of families who have daily income interval 200-300 = 40
Number of families who have daily income interval 300-400 = 5
Number of families who have daily income interval 400-500 = 20
Number of families who have daily income interval 500-600 = 30
Number of families who have daily income interval 600-700 = 15
Number of families who have daily income 700-800 = 10
Number of families who have daily income interval 800-900 = 40
Number of families who have daily income interval 900-1000 = 15
Total number of families = 15 + 10 + 40 + 5 + 20 + 30 + 15 + 10 + 40 + 15 = 200
