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Q. --- is used in quality control

Q. ------ is used whenever the relative importance of the items in a series differs

Q. Median is a ----- average

Q. The formula of Q.D

Q. Measures of dispersion are called averages of ----- order

Q. ---- is the half distance between the third and first quartiles

Q. What is the Mean for the following observation ; 3,4,6,7,10

Q. According to ---- method original data are plotted on graph

Q. Graphical method of measuring variability is first used by

Q. Mean deviation is based on all values , so it is more