Upper quartile is the lowest value of
Quartiles are those values which divide the series into four equal parts. Upper or third quartile is calculated as under:
Q3 = Value of 3(N+1)/4 th item
Arithmetic mean is of
Arithmetic mean is of two types: simple arithmetic mean and weighted mean.
Deciles refer to the division of series into
Deciles, as its name suggests, refers to the division of series into ten equal parts. The value of each part is known as deciles.
The another name of the 'measure of central tendency' is called
Measures of central tendency refers to all those methods of statistical analysis which are used to calculate the average of a set of data.
Arrangment of data in the given series is required while computing
Median requires arrangement of data in either ascending or descending order before calculating median.
Lower limit of first group and upper limit of last group are undefined in
In case of classes like, below 10, 10-20, 20-30, 30-40, 40-50, above 50, computation of arithmetic mean would be impossible unless we assume the unknown limits.
Arranging of data in the given series is required while computing
Calculation of median requires arranging of data in ascending or descending order before calculating mean. It can also be located graphically.
The mathematical average is also called
Mean is a mathemaatical average. Arithmetic mean or mean is defined as the sum of values of a group of items divided by the number of items. It is denoted by mean.
Calculation of mean is very difficult in case of
In case of open end classes, computation of arithmetic mean would be difficult unless we assume the unknown limits.
Value that divides the series into hundred equal parts is called
Values that divide the series into hundred equal parts are called percentiles. In percentile, we get 99 dividing positions denoted by P1, P2,……..,P99.