The sum of the squares of the deviations of the variable is when taken about arithmetic mean

Related MCQs

• The sum of deviations of observations from their arithmetic mean:
• 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.
• The sum of absolute deviations is minimum when taken from:
• The sum of squared deviations is minimum when taken from:
• The mean deviation is minimum when deviations are taken from:
• The arithmetic mean is 12 and the number of observations are 20 then the sum of all the values is
• If the sum of squares of the rank differences of 10 pairs of values is 30, find the correlation coefficient between them.
• In a bivariate sample, the sum of squares of differences between marks of observed values of two variables is 33 and the rank correlation between them is 0.8. Find the number of pairs of observations:
• In a bivariate distribution, Spearman’s Coefficient of Correlation is -0.25. If the sum of the squares of various ranks is 150, find out the number of pairs of items:
• From which average, the sum of deviations is zero?