Q.1 - An Iptv company estimates the growth of the Iptv television. Observation of the data points indicates that the growth in the percentage of television households having Iptv has been approximately linear. Using two data points for 1996 and 2010 i.e. ( 15, 20 ) and (29, 60) to estimate the linear relationship between the percentage P and time t (t 1 corresponds to 1982). If P is plotted on vertical axis: a. Determine the slope-intercept form of the linear estimating equation. b. Interpret the meaning of slope. c. Interpret the meaning of P intercept d. Interpret the meaning of t intercept e. Graph the equation. f. Forecast the expected percentage for 2025.
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.
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