Q. The average which is based on all observations of the series is called: MeanMedianModeIndex Number Answer: Mean

Q. Measures of Central Tendency is Quartile DeviationMean DeviationStandard DeviationMean Answer: Mean

Q. The measure of central tendency which is most strongly affected by extreme values in the distribution is: MeanMedianModeNone of above Answer: Mean

Q. Percentiles divide a series into ______. Ten equal partsTwenty equal partsFifty equal partsHundred equal parts Answer: Hundred equal parts

Q. Which of the following is a characteristic of a mean? The sum of deviations from the mean is zeroIt minimises the sum of squared deviationsIt is affected by extreme scoresAll of the above Answer: All of the above

Q. Which of the following diagrams is used to find the value of mode graphically? Pie chartBar graphHistogramNone of the above Answer: Histogram

Q. ________ divides the data into four equal parts. MedianQuartilesMeanNone of the above Answer: Quartiles

Q. The values of extreme items do not influence the average for_________. MeanModeMedianNone of the above Answer: Median

Q. What is the mean of the following numbers: 23, 45, 87, 40, 50? 493456None of the above Answer: 49

Q. The number of observations smaller than ________ is the same as the number of observations larger than it. MedianModeMeanNone of the above Answer: Median