Grouping of frequencies is a process of calculating
Index number
Correlation
Mean
Mode
Arithmetic mean is
Moving average
Progressive average
Mathematical average
Positional average
In these days, meteorological forecasts are based upon
Median
Which average is affect most by the presence of extreme items ?
Arithmetic mean
Geometric Mean
The most suitable average for qualitative measurement is
Geometric mean
Which average is affected most by the presence of extreme items ?
Choose the correct statement :
The sum of all observation in a series divided by the total number of observations
Mean should be
Rigidly defined
Simple
Based on all items
All the above
Mid - point is calculated by using following formula :
