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Q. Which of the following is a unit free measure of dispersion:

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

Q. Wheat crops badly damaged on account of rains is:

Q. The method used to compute average or central value of the collected data is considered as

Q. Find the median of the set of numbers: 100, 200, 450, 29, 1029, 300 and 2001.

Q. The arithmetic mean of the marks obtained by 50 students was calculated as 44. It was later discovered that a score of 36 was misread as 56. Find the correct value of arithmetic mean of the marks obtained by the students.

Q. In a moderately skewed distribution, the value of mean is 16 and that of mode is 25.

Q. The general purchasing power of the currency of a country is determined by:

Q. In a moderately asymmetrical distribution, the mode and mean are 32.1 and 35.4 respectively. Calculate the median.

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