1
Question
The duration of watching TV by a certain number of students is represented graphically in the histogram. The recommended duration of watching TV by the INDIAN TV association is 2-6 hours. How many students come into this category?
- 85
- 85
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Solution
The correct option is A 85
The histogram is made for continuous series distribution.
In the given histogram, students who watch TV for 2 hours or more but not more than 6 is the sum of the length of the bars of class interval 2-3, 3-4, 4-5 and 5-6.
Hence, the number of students who are withon the recommended duration is 15 + 20 + 35 + 15 = 85.
The histogram is made for continuous series distribution.
In the given histogram, students who watch TV for 2 hours or more but not more than 6 is the sum of the length of the bars of class interval 2-3, 3-4, 4-5 and 5-6.
Hence, the number of students who are withon the recommended duration is 15 + 20 + 35 + 15 = 85.
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