# Relationship between Arithmetic Mean, Geometric Mean and Harmonic Mean

There is a Mathematical relationship between arithmetic mean, geometric mean, and harmonic mean. This relationship is given as:     This relationship can be proved with the help of following problem. Problem: Following are the…

# How to Calculate Harmonic Mean

The harmonic mean of a set of observations is the reciprocal of the arithmetic mean of the reciprocal of the observations. Harmonic mean is defined only for non-zero positive values and is used for averaging…

# How to Calculate Geometric Mean

Geometric mean is defined only for non-zero positive values. Therefore in order to use geometric mean all the observations must be positive and greater than zero. Since geometric mean has the effect of reducing the…

# Properties of Arithmetic Mean

Following are some of the important properties of arithmetic mean, which are elaborated with the help of simple problems. Problem: A researcher conducted a research and got the observations: 50, 60, 65, 75, and 80….

# What is Weighted Arithmetic Mean

If all the values of the data are not equally important, a weighted arithmetic mean is calculated after assigning appropriate weights to the values of the data. The basic difference between arithmetic mean and weighted…

# Arithmetic Mean of Frequency Distribution

In case of frequency distribution the raw data is arranged by intervals having corresponding frequencies. So if we are interested to find the mean of the data having class intervals we must know the variable…

# How to Calculate Arithmetic Mean

Arithmetic mean is the sum of the values divided by the number of values in the raw data. Arithmetic mean is also called simple mean because of its wide usage as a measure of central…

# Relative Cumulative Frequency Distribution

The cumulative frequency divided by the total frequency is called relative cumulative frequency or percentage cumulative frequency. It is used to know the percentage of observations falling below a certain specified value. A table showing…

# How to Calculate Cumulative Frequency Distribution

Cumulative frequency distribution shows the number of observations which fall below or above in a given class interval. If the number of observations fall below in a given class interval then it is called less…

# How to Construct a Relative Frequency Distribution

Frequency of a class divided by total frequency of all classes is called relative frequency. Relative frequency is expressed in terms of percentage therefore it is also known as percentage distribution. A table showing intervals…