For an experiment we have the following data set: n = 4, ∑ X = a,∑ Y = 10,∑ XY = 21,∑ X2 = 30,∑ Y2 = 30 the correlation coefficient is -0.8 then the value of a is:
The correct answer is C
In the meeting who is sitting immediately right to K?
Who among the following person likes Black?
Find the one who visits on Saturday?
On which of the following days the English exam was held?
Who among the following lives on 1st floor of the building?
How many persons are junior to F?
If C is related to 2015 and F is related to 2019 in a certain way, then G is related to which of the following year?
Which of the following combination of rooms are vacant?
Which of the following is true regarding box P?
How many persons purchased bungalow between Babli and Farun?