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Question
Which of the following cannot be determined graphically?
Options
Mean
Median
Mode
None of these
Solution
Mean
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Five coins were simultaneously tossed 1000 times and at each toss the number of heads were observed. The number of tosses during which 0, 1, 2, 3, 4 and 5 heads were obtained are shown in the table below. Find the mean number of heads per toss.
| No. of heads per toss | No. of tosses |
| 0 | 38 |
| 1 | 144 |
| 2 | 342 |
| 3 | 287 |
| 4 | 164 |
| 5 | 25 |
| Total | 1000 |
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| Class | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 |
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