Q. The midpoint of the values after they have been ordered from the smallest to the largest or the largest to the smallest is called: MeanMedianLower quartileUpper quartile Answer: Median

Q. The arithmetic mean of 10 items is 4 and the arithmetic mean of 5 items is 10. The combined arithmetic mean is: 45690 Answer: 6

Q. The mean for a set of data obtained by assigning each data value a weight that reflects its relative importance within the set, is called: Geometric meanHarmonic meanWeighted meanCombined mean Answer: Weighted mean

Q. When all the values in a series occur the equal number of times, then it is not possible to calculate the: Arithmetic meanGeometric meanHarmonic meanWeighted mean Answer: Weighted mean

Q. When the values in a series are not of equal importance, we calculate the: Arithmetic meanGeometric meanWeighted meanMode Answer: Weighted mean

Q. Step deviation method or coding method is used for computation of the: Arithmetic meanGeometric meanWeighted meanHarmonic mean Answer: Arithmetic mean

Q. The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from: Harmonic meanGeometric meanMedianArithmetic mean Answer: Arithmetic mean

Q. The sum of the squares of the deviations about mean is: ZeroMaximumMinimumAll of the above Answer: Minimum

Q. The elimination of extreme scores at the top of the set has the effect of: Lowering the meanRaising the meanNo effectDifficult to tell Answer: Lowering the mean

Q. The elimination of extreme scores at the bottom of the set has the effect of: Lowering the meanRaising the meanNo effectNone of the above Answer: Raising the mean