Question
If angle between two sides of 3 cm & 2 cm of a triangle
is 30°. what is the area of the triangle ?Solution
Area of the triangle = 1/2 X a X b X Sin θ  where ɵ is the angle between two sided a & b of the triangle; So Area of the triangle  = 1/2 X a X b X Sin θ   = 1/2 X a X b X sin 300 = 1/2 X 3 X 2 X 1/2 = 3/2 cm2
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.
