Find the median, mode and mean of 9, 5, 8, 9, 9, 7, 8, 9, 8.
X attempts 100 questions and gets 340 marks. If for every correct answer is 4 marks and wrong answer is negative one mark, then the number of questions wrongly answered by Mr. X is:
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If the standard deviation of 0, 1, 2, 3 ......... 9 is K, then the standard deviation of 10, 11, 12, 13 ........... 19 will be:
The standard deviation of the set {10, 11, 12, 9, 8} is
Find the range of the data 2, 1, 2, 3, 5, 4, 7, 3, 5, 2, 4.
In the usual set notation, A ∪ (B ∩ C) =
Find the range and mode of the data 17, 18, 28, 19, 16, 18, 17, 29, 18
Find the standard deviation of {11, 7, 10,13, 9}
A table tennis player, lost 12 games out of 18 games played. Calculate the games won in terms of decimal.
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