Mathematics
The data on the number of patients attending a hospital in a month is given below. Find the average (mean) number of patients attending the hospital in a month using the short cut method.
Take assumed mean as 45. Give your answer correct to 2 decimal places.
| Number of patients | Number of days |
|---|---|
| 10 - 20 | 5 |
| 20 - 30 | 2 |
| 30 - 40 | 7 |
| 40 - 50 | 9 |
| 50 - 60 | 2 |
| 60 - 70 | 5 |
Related Questions
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