1) Half of 7 pairs of calves consisting of identical twins drank milk for 3 months and the other half for 4 months. The 6-month weights of the calves are given below. Milk drinking time differs according to 6- month weight. Has it made an impact? (a=0.05) 3 mounth 86 92 102 96 83 89 78 4 mounth 90 96 100 106 95 87 90
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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