Question
Let X1, X2 and X3 are three (Pairwise) uncorrelated
random variables. The mean & variance of each variable is 0 and 3, respectively. Find the correlation between (X1 + X2) and (X1 + X3).Solution
In certain code language.
'You are bad' is written as 'YO LO PO', 'Schools are bad' is written as 'NO PO YO', and 'You are human' is written as '...
Select the number from among the given options that can replace the question mark (?) in the following series.
218, 231, 248, 267, ?
What should come in place of the question mark (?) in the given series?
8, 21, 34, 47, 60, ?

The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number of that pair. The same opera...
Select the appropriate picture next to the series from the given options.
Select the number from among the given options that can replace the question mark (?) in the following series.
1, 3, 7, 15, 31, 63, ?
Select the correct option that indicates the arrangement of the given words in the order in which they appear in an English dictionary.
1. Formal...
Statement: "All dogs are animals. Some animals are cats.":
Conclusion1. Some dogs are cats.
Conclusion 2. Some animals are dogs.
Which two numbers should be interchanged to make the given equation correct?
700 + 42 ÷ 6 × 45 – 54 × 9 + 14 = 355