Descriptive Statistics

Mean median and mode for ungrouped data

Feb 20, 2024
STATISTICS

Mean, median and mode for ungrouped data Let $x_i, i=1,2, \cdots , n$ be $n$ observations. Formula The mean of...

2 min Read

Moment coefficient of kurtosis for grouped data

Feb 20, 2024
STATISTICS

Moment coefficient of kurtosis for grouped data Let $(x_i,f_i), i=1,2, \cdots , n$ be given frequency distribution. The mean of...

3 min Read

Moment coefficient of kurtosis for ungrouped data

Feb 20, 2024
STATISTICS

Moment coefficient of kurtosis for ungrouped data Let $x_1, x_2,\cdots, x_n$ be $n$ observations. The mean of $X$ is denoted...

2 min Read

Moment coefficient of Skewness for grouped data

Feb 20, 2024
STATISTICS

Moment coefficient of skewness for grouped data Let $(x_i,f_i), i=1,2, \cdots , n$ be given frequency distribution. The mean of...

3 min Read

Moment coefficient of skewness for ungrouped data

Feb 20, 2024
STATISTICS

Moment coefficient of skewness for ungrouped data Let $x_1, x_2,\cdots, x_n$ be $n$ observations. The mean of $X$ is denoted...

2 min Read

Octiles for grouped data

Feb 20, 2024
STATISTICS

Octiles for grouped data Octiles are the values of arranged data which divide whole data into eight equal parts. They...

4 min Read

Octiles for ungrouped data

Feb 20, 2024
STATISTICS

Octiles for ungrouped data Octiles are the values of arranged data which divide whole data into eight equal parts. They...

2 min Read

Outliers for ungrouped data

Feb 20, 2024
STATISTICS

Outliers for ungrouped data An outlier is any observation that is $1.5(IQR)$ away from the first quartile ($Q_1$) or third...

3 min Read

Percentiles for grouped data

Feb 20, 2024
STATISTICS

Percentiles for grouped data Percentiles are the values which divide whole distriution into hundred equal parts. They are 99 in...

4 min Read

Percentiles for ungrouped data

Feb 20, 2024
STATISTICS

Percentiles for ungrouped data Percentiles are the values of arranged data which divide whole data into hundred equal parts. They...

4 min Read

Quartile Deviation for ungrouped data

Feb 20, 2024
STATISTICS

Quartile Deviation for ungrouped data Quartile Deviation is given by $QD = \dfrac{Q_3-Q_1}{2}$ Coefficient of Quartile Deviation is given by...

3 min Read

Quartiles for grouped data

Feb 20, 2024
STATISTICS

Quartile for grouped data Quartiles are the values which divide whole distriution into four equal parts. They are 3 in...

5 min Read