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| Quartiles | Deciles |
| (i) Quartiles are the values that divide the series into four equal parts. | (i) Deciles are the values that divide the series into ten equal parts. |
| (ii) These are the 3 values that divide the distribution into 4 parts, each representing onequarter of the score. | (ii) These are the 9 values that divide the distribution into 10 parts. |
| (iii) It is denoted by: Q1 , Q2 , and Q3 | (iii) It is denoted by D1 , D2 , D3 , …………. D9 |
| (iv) 2nd Quartile is the median. | (iv) 5th Decile is the median. |
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