Question
2, 6, 44, 462, 6930,
131670 Find the wrong number in the given number series.Solution
ATQ, 2 × (1 + 2) = 6 6 × (3 + 4) = 42 42 × (5 + 6) = 462 462 × (7 + 8) = 6930 6930 × (9 + 10) = 131670 So, 42 will come in place of 44.
At a round table, n persons are seated on n chairs. The probability that two friends from same college are sitting next to each other, is:
The deseasonalised time - series data will have only trend (T), cyclical (C) and irregular (I) components and is expressed as:
The grouped data for the observation are as follows.
Class :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2-4Â Â Â Â Â Â Â Â 4-6Â Â Â Â Â Â Â Â Â 6-8<...
These seventh decile (D7) of data set 4, 3, 10, 9, 1 is
The coefficient of correlation is the _________ of coefficients of regression.
Five persons A, B, C, D and E occupy seats in a row at random. The probability that A and B sit next to each other is:

Which option is WRONG?
Which option is incorrect for the component of ti.me series.
