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Q. The average to be used to determine the average size of the shoe sold in a shop is:

Q. If all the points of a scatter diagram lie on a straight line falling from left upper corner to the right bottom corner, the correlation is called...................

Q. The trend line Y=a+bX obtained by the least Squares method is known as the line of

Q. In quality control of manufactured items, the most common measure of dispersion is:

Q. Index number calculated by Fisher's formula is ideal because it satisfy:

Q. The Correlation coefficient between two variables is the………………..of their regression coefficients.

Q. For a symmetrical distribution Q1=25, Q3=45, the median is

Q. A period for which index number is determined is called as ------

Q. The measurements of spread or scatter of the individual values around the central point is called:

Q. Asimpleindexnumberis anumberthatmeasures arelativechangein ?