Which is not a merit of arithmetic mean ?
It is simpler to understand and easy to calculate
It is affected by extreme items.
It is good base for comparison
It is a calculate value
For calculating Q1 and Q3 , the values
Need not to be arranged
Must be arranged in ascending order only
Must be arranged in descending order only
May be arranged either in ascending order or descending order .
Choose the correct statement :
The sum of all observation in a series divided by the total number of observations
Which average is affect most by the presence of extreme items ?
Median
Mode
Arithmetic mean
Geometric Mean
Mid - point is calculated by using following formula :
Average value of given variable is known as
Mean
Index number
The ______ is the middle element when the data set is arranged in order of the magnitude.
The most suitable average for qualitative measurement is
Geometric mean
In these days, meteorological forecasts are based upon
