Question
For two correlated variables x and y, if
coefficient of correlation between x and y is 0.8014, variance of x and y are 16 and 25 respectively. Then the covariance between x and y is:ÂSolution
 Put the given values in formula to get the value of covariance. Cov =(¼)*(1/5)*(0.8014) = 16.028
Find the missing figure in the series from the given answer figures.
In a certain code language, ‘sit on chair’ is coded as 'sk mi cn' and ‘the chair broke’ is coded as ‘gm fr mi’. How is ‘chair’ coded in ...
54 : 3 :: ? : 4 :: 500 : 5
Read the given statements and conclusions carefully. Decide which of the given conclusion's follow based on the statements.
Statements:
...
A man is standing in the park facing North. He turns to 90° towards the left and walks 40 km. He again takes a 90° turn towards the right and walks 50...
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
(3, 9, 2)
(8, 6, 8)
(5, 3, ?)...
Two inferences I and II after one statement are given. Assuming that the given statement is true even if it seems to be at variance from commonly k...
There are seven persons Anmol, Fuzail, Raju, Enamul, Dinesh, Badal and Chaman each of different professions Lawyer, Judge, Police, Professor, Architect,...
Select the figure given in the options which when put in place of the question mark (?) will logically complete the series.
Seven boxes M, N, O, W, X, Y and Z are kept one over the other but not necessarily in the same order.
i. N is kept immediately above W.
ii...
