China had a population in 2008 of about 1.14 billion people. The populaton is growing by about 1.34% each year. If this trend continues, when will China's population reach 1.2 billion.
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
China had a population in 2008 of about 1.14 billion people. The populaton is growing by about 1.34% each year. If this trend continues, when will China's population reach 1.2 billion.
Given Information-
Initial population of China at the year 2008 (Let x0) = 1.14 billion
Growth rate (let r) = 1.34%
Population of china after 't' years from the starting year (Let x(t)) = 1.2 billion
Population after 't' years if 'r' is the growth rate is given by-
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