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प्रश्न
Find the mean of the following distribution:
| Class interval | 0 - 10 | 10 - 20 | 20 - 30 | 30 - 40 | 40 - 50 |
| Frequency | 10 | 6 | 8 | 12 | 5 |
उत्तर
| Class Interval |
Frequency (f) |
Mid value x |
fx |
| 0 - 10 | 10 | 5 | 50 |
| 10 - 20 | 6 | 15 | 90 |
| 20 - 30 | 8 | 25 | 200 |
| 30 - 40 | 12 | 35 | 420 |
| 40 - 50 | 5 | 45 | 225 |
| `sumf` = 41 | `sumfx` = 985 |
∴ Mean = `(sumfx)/(sumf) = (985)/(41)`
= 24·02.
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संबंधित प्रश्न
Calculate the mean for the following distribution:-
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| x | 19 | 21 | 23 | 25 | 27 | 29 | 31 |
| f | 13 | 15 | 16 | 18 | 16 | 15 | 13 |
Find the mean of each of the following frequency distributions: (5 - 14)
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| Frequency | 6 | 8 | 10 | 9 | 7 |
Find the mean of the following data, using step-deviation method:
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There are three dealers A, B and C in Maharashtra. Suppose, the trade of each of them in september 2018 was as shown in the following table.
The rate of GST on each transaction was 5%.
Read the table and answer the questions below it.
| Dealer | GST collected on the sale |
GST paid at the time of purchase |
ITC | Tax paid to the Govt. |
Taxbalance with the Govt. |
| A | Rs.5000 | Rs. 6000 | Rs. 5000 | Rs. 0 | Rs. 1000 |
| B | Rs 5000 | Rs. 4000 | Rs. 4000 | Rs. 1000 | Rs. 0 |
| C | Rs.5000 | Rs. 5000 | Rs. 5000 | Rs. 0 | Rs. 0 |
(i) How much amount did the dealer A get by sale ?
(ii) For how much amount did the dealer B buy the articles ?
(iii) How much is the balance of CGST and SGST left with the government that was paid by A ?
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500-520 | 520-540 | 540-560 | 560-580 | 580-600 |
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Define mean.
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| Class | 0 – 10 | 10 – 20 | 20 – 30 | 30 – 40 | 40 – 50 |
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