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

Q. The sum of deviations from the _________ is always zero. MedianModeMeanNone of the above Answer: Mean

Q. Mode refers to the value within a series that occurs ________ number of times. MaximumMinimumZeroInfinite Answer: Maximum

Q. When the values in a series do not have equal importance, we calculate the _______. ModeWeighted meanArithmetic meanNone of the above Answer: Weighted mean

Q. Which measure of central tendency includes the magnitude of scores? MeanModeMedianRange Answer: Mean

Q. To calculate the median, all the items of a series have to be arranged in a/an ________. Descending orderAscending orderAscending or descending orderNone of the above Answer: Ascending or descending order

Q. The two methods of finding mode in a discrete series are _______. Grouping method and ascending methodTable method and midpoint methodGrouping method and inspecting methodNone of the above Answer: Grouping method and inspecting method