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Q. In a mesokurtic or normal distribution, µ4 = 243. The standard deviation is:

Q. Which partition value divides the series into two equal parts.

Q. Secular trend can be measured by:

Q. The degree of peaked ness or flatness of a unimodal distribution is called:

Q. Bowley's coefficient of skewness lies between:

Q. If the coefficient of determination is equal to 1, then the correlation coefficient :

Q. In regression analysis, if the independent variable is measured in kilograms, the dependent variable:

Q. The smaller the variance the less spread of the data around the mean

Q. In statistics out of 100, marks of 21 students in final exams are as 90, 95, 95, 94, 90, 85, 84, 83, 85, 81, 92, 93, 82, 78, 79, 81, 80, 82, 85, 76, 85 then mode of data is

Q. is data that is collected by a researcher from first-hand sources