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7. Statistics
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Q1 of 48 Page 126

What is the median of 7, 10, 7, 5, 9, 10?

Here, n=6



So median = Mean of third and fourth observations.


On arranging above data in ascending order, we get: 5, 7,7,9,10,10


⇒ 3rd term = 7 and 4th term = 9


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Mean of 100 observations is 40. The 9th observation is 30. If this is replaced by70 keeping all other observations same, find the new mean.

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Questions · 48
7. Statistics
1 2 1 1 2 3 4 5 6 7 8 9 10 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 1 1 1 1 1 1 1 1 1 2 3 4 5 6 7 8
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