Question
For an experiment we have the following data set: n =
4, β X = a,β Y = 10,β XY = 21,β X2 = 30,β Y2Β = 30 the correlation coefficient is -0.8 then the value of a is:Solution
The correct answer is C
The length of the diagonal of a rectangle is 26 cm, and one side is 10 cm. The area of the rectangle is:
Which of the following statement is NOT correct about the Rewa ultra-mega solar power project?
Match the following correctly?

Who was known as the Iron Man of India'?
Which of the following is not present in Pteridophytes?
Phulaich is a colourful festival of the State of ______.
Which one of the following recommended that the public health expenditure of the Union and State Governments together should be increased in a progressi...
On January 15, 2021, the Government of India launched the third phase of Pradhan Mantri Kaushal Vikas Yojana. Which of the following points is INCORRECT...
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