Gilbert's Z-score on a test is 2.5. What does this mean?
When data is arranged, middle value in set of observations is classified as
Service time (in minutes) at airport ticket counter is as 4.5, 5.5, 6, 7, 8, 8.5, 4, 3, 3.5, 2.5, 3.8 then median of data is
If quartile range is 24 then quartile deviation is
Arithmetic mean is 25 and all sum of observations is 350 then number of observations are
Median, mode, deciles and percentiles are all considered as measures of
Mode of 12, 17, 16, 14, 13, 16, 11, 14 is
Statistically, spread or scatterness of observations in a data is called
If mean of 6 numbers is 41 then sum of these numbers is