The following are historical demand data: ACTUAL YEAR SEASON DEMAND 2 years ago Spring 205 Summer 140 Fall 375 Winter 575 last year Spring 475 Summer 275 Fall 685 Winter 965 Use regression analysis and seasonal indexes to forecast this summer's demand. (Do not round intermediate calculations. Round your answer to the nearest whole number.) Forecast for this summer's demand

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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.