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Q. Bowley's coefficient of skewness lies between:

Q. A measure of is a single value that attempts to describe a set of data by identifying the central position within that set of

Q. The value at the base time period serves as the standard point of comparison

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

Q. The sample mean is a

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. If the arithmetic mean is multiplied to coefficient of variation then the resulting value is classified as

Q. play a very important part in the construction of index nos

Q. The sample coefficient of correlation

Q. The component of time series useful for long term forecasting is