Question
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:Solution
The correct answer is C
More Welfare Economics Questions
Which one of the following animals can hear ultrasonic sound?
A simple microscope consists of :
The hormone related to drought tolerance is-
‘Therm' is the unit of –
Vivek was walking in the park. On the way he found a stone lying. He picked the stone and threw it up in the sky. After few seconds, he observed that th...
If input frequency of a full wave rectifier be n, then output frequency would be-
Temperature of the Sun is measured by
Photovoltaic cells are:
Which statement is true regarding infrasound?
Which one is the largest Island of Japan?
