1
Find the first and third quartiles of the following set of data.
81, 95, 88, 78, 86, 92, 84, 87
| First quartile | Third quartile | |
| A | 81 | 92 |
| B | 82.5 | 90 |
| C | 84 | 88 |
| D | 85 | 87.5 |
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A
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B
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C
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D