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Question
From the following data, find:
Upper quartile
25, 10, 40, 88, 45, 60, 77, 36, 18, 95, 56, 65, 7, 0, 38 and 83
Sum
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Solution
Arrange in ascending order:
0, 7, 10, 18, 25, 36, 38, 40, 45, 56, 60, 65, 77, 83, 88, 95
Upper quartile
`q_3 = ((3(n))/4)^("th")` term
`q_3 = (3 xx 16)^("th")/4` term
= 12th term
= 65
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