Practice Test

Q1) Q. D. is called as ________. Show Answer

Q2) __________ deviation is called Semi - inter quartile range. Show Answer

Q3) __________deviation is defined as half the different between the lower and upper quartile. Show Answer

Q4) _________ is positive square root of variance. Show Answer

Q5) S. D. is __________. Show Answer

Q6) Coefficient of variation is ____________. Show Answer

Q7) _________ is measure of dispersion is based on the only 50% of central observation. Show Answer

Q8) The range of 15, 12, 10, 5, 17, 25 is __________. Show Answer

Q9) The S. D. of 5, 8, 5, 8, 5, 5, 8, 8 is _________. Show Answer

Q10) Q. D. is based on the __________. Show Answer

Q11) Coefficient of Q. D. is _________. Show Answer

Q12) What is the coefficient of range for following wages of 8 workers: 80, 65, 90, 60, 75, 70, 72, 85? Show Answer

Q13) What is the mean deviation about mean for the following observation: 5, 8, 6, 3, 4 Show Answer

Q14) What is the mean deviation about mean for the following observation?
50, 60, 50, 50, 60, 60, 60, 50, 50, 50, 60, 60, 60, 50 Show Answer

Q15) What is the S. D. of 5, 5, 9, 9, 9, 10, 5, 10, 10? Show Answer

Q16) What is the C. V. of 53, 52, 61, 60, 64? Show Answer

Q17) The measure that helps us to know the spread of a data set is called ___________. Show Answer

Q18) The measures used to calculate the variation present among the observations in the unit of the variable is called __________. Show Answer

Q19) The measures used to calculate the variation present among the observations relative to their average is called _________. Show Answer

Q20) Which of the following is an absolute measure of dispersion? Show Answer

Q21) The measure of dispersion which uses only two observations is called __________. Show Answer

Q22) The range of the scores 29, 3, 143, 27, 99 is: __________. Show Answer

Q23) Half of the difference between upper and lower quartiles is called __________. Show Answer

Q24) The mean deviation is minimum when deviations are taken from __________. Show Answer

Q25) The positive square root of the mean of the squares of the deviations of observations from their mean is called ___________. Show Answer

Q26) The ratio of the standard deviation to the arithmetic mean expressed as a percentage is called ___________. Show Answer

Q27) Standard deviation is always calculated from _________. Show Answer

Q28) The range of 82, 96, 52, 70, 50, 65, 70, 75 is ___________. Show Answer

Q29) Which of the following relative measure of dispersion has unit? Show Answer

Q30) The coefficient of range for 20, 30, 10, 50, 60, 70 is _________. Show Answer

Q31) Mean and Standard deviation for certain data are 15 and 2.54, then coefficient of variation is __________. Show Answer

Q32) Coefficient of variation of group A is 2.5 and coefficient of variation of group B is 2.3, then _________. Show Answer

Q33) Which of the following measure of dispersion does not depend on the averages? Show Answer

Q34) The standard deviation of 21, 24, 27, 12, 15, 18, 9 is _________. Show Answer

Q35) The mean deviation from mean for 3, 4, 5, 6, 8 is ________. Show Answer

Q36) Which of the following measure of dispersion is based on all observations? Show Answer

Q37) The Quartiles of the Variable x are 22, 28 and 33, then Quartile deviation is _____________. Show Answer

Q38) The coefficient of variation and mean of X is 30 and 12 respectively, then Standard Deviation is _________. Show Answer