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Freehand Curve Method of measuring Secular Trends in Time Series

Freehand Curve Method of measuring Secular Trends in Time Series- A free-hand curve method is a simple, quick, and easy way to measure … […]

Models of Time Series in Statistics

Lata Agarwal

Models of Time Series: Additive model of time series, Multiplicative model of time series, Difference between Multiplicative and Additive models… […]

Components of Time Series

Lata Agarwal

Components of Time Series: A time series is made up of the four components or elements listed below – 1. Basic or Secular or Long-time trend, 2. Seasonal variations, 3. Business cycles or cyclical movement and 4. Erratic or Irregular fluctuations. […]

Features and Importance of Index Number in Statistics

Lata Agarwal

Features of Index Numbers in Statistics – Index Number has the following features in statistics: (i) Index numbers are specialized averages that are capable of being expressed in percentages. (ii) Index numbers measure the changes […]

Time Series in Statistics

Lata Agarwal

Definitions of Time Series in Statistics: A time series is a statistical series formed by arranging quantitative data in the order of their … […]

Characteristics of a Good Sample in Statistics

Lata Agarwal

Characteristics of a Good Sample in Statistics are as follows: (1) A good sample should be representative of the population … […]

Principles of Sampling or Laws of Sampling in Statistics

Lata Agarwal

Principles or Laws of Sampling in Statistics: Sampling theory is based on two laws: 1- Law of Statistical Regularity, 2- Law of Inertia of Large Numbers … […]