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Q. Find the mean of 13,18,13,14,13,16,14,21,13

Q. The range of the values -5, -8, -10, 0, 6, 10 is:

Q. From which average, the sum of deviations is zero?

Q. According to percentiles, the median to be measured must lie in

Q. The range of the scores 29, 3, 143, 27, 99 is:

Q. The standard deviation is independent of:

Q. The median of the data 13, 15, 16, 17, 19, 20 is:

Q. Which of the following is true, if there is no dispersion in a data set:

Q. Half of the difference between upper and lower quartiles is called:

Q. The first three moments of a distribution about the mean are 1, 4 and 0. The distribution is: