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7. Statistics
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Q19 of 141 Page 8

If the mode of the data: 16, 15, 17, 16, 15, x, 19, 17, 14 is 15, then x =

As we know, mode of any data is the observation which occurs most.


In this case, 17 occurs two times and 15 is the mode of data


Therefore, 15 should occur more than two times.


And this is possible if and only if


x = 15


Hence, correct option is (B).

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The median of first 10 prime numbers is

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If the mode of the data: 64, 60, 48, x, 43, 48, 43, 34 is 43, then x + 3 =

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The mean of 1, 3, 4, 5, 7, 4 is m. The numbers 3, 2, 2, 4, 3, 3, p have mean m − 1 and median q. Then, p + q =

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Questions · 141
7. Statistics
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
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