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
Value of Sfd is 165, A= 25, and width of class interval is 10, arithmetic mean is 145 then number of observations are
If quartile range is 24 then quartile deviation is
In arithmetic mean, sum of deviations of all recorded observations must always be
Number of patients who visited cardiologists are as 63, 57, 51, 65 in four days then absolute mean deviation (approximately) is
In two units of company, employees in unit one are 650 and monthly salary is $2750, employees in unit two are 700 and monthly salary is $2500 then combined arithmetic mean is
In normal distribution, z-score and z-statistic are classified as names of
If value of mode is 14 and value of arithmetic mean is 5 then value of median is
If value of first quartile is 49 and value of third quartile is 60 then value of inter quartile range is
Arithmetic mean is 25 and all sum of observations is 350 then number of observations are
Type of variable which can take fixed integer values is classified as
Summary and presentation of data in tabular form with several non-overlapping classes is referred as
Variability which is defined as difference between third and first quartile is considered as
A numerical value used as a summary measure for a sample, such as sample mean, is known as a