Question
If 236 = 33, 487 = 57, 6391 = 57, then 851 =
?Solution
The logic followed here is as follows: The sum of all the digits of the number, and then the sum is multiplied by '3'. For 236 = 33: 2 + 3 + 6 = 11×3 = 33 For 487 = 57: 4 + 8 + 7 = 19 × 3 = 57 For 6391 = 57: 6 + 3 + 9 + 1=19 × 3 = 57 Similarly, for 851 = ?: 8 + 5 + 1 = 14 × 3 = 42
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.
Relevant for Exams:
