Question
If x and y are two random variables and a, b, c, d are
any numbers provided a ≠ 0, c ≠ 0, then correlation co-efficient between ax + b and cy + d is -Solution
If x and y are two random variables and a, b, c, d are any numbers provided a ≠ 0, c ≠ 0, then correlation co-efficient between ax + b and cy + d is r (ax + b, cy + d) = (ac/|ac|) r(x, y). r is independent of change of origin and scale but it is dependent on change of sign.
In each group of questions below are two conclusions followed by five set of statements. You have to choose the correct set of statements that logicall...
Statement:
I) All blue are purple
II) Some purple are yellow
III) No yellow is green
IV) All green are brown
Co...
Select the option that is related to third letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster.
EX...
Statements: Some dogs are cats.
No camel is a rat.
All cats are camels.
Conclusions: I. All dogs may be camels.
II. Some ...
Statements:
Only a few Novels are Journals.
Only a few Journals are Booklets.
All Booklets are Magazine.
Some Booklets are ...
Statements : Some potatoes are nuts.
All nuts are cashews.
No cashew is a fruit.
Conclusions: Some potatoes are cashews.
Statements:
Only a few Lotion is Shampoo.
No Shampoo is Conditioner.
Only Conditioner is Soap.
Conclusion:
I. So...
Statements:
Some dogs are cat
No cat is a lion
All lions are tiger
Conclusion:
I. All dog can never be lion
...Statements: Some doors are windows.
All houses are windows.
No mirror is a door.
Conclusions: I. Some doors are mirror
In the question below, three statements are given followed by the conclusions. You have to take the given statements to be true even if they seem to be...
