Association Suppose you were to collect data for eachpair of variables. You want to make a scatterplot. Whichvariable would you use as the explanatory variable andwhich as the response variable? Why? What would you expect to see in the scatterplot? Discuss the likely direc-tion, form, and strength. a) Cell phone data plans: file size, costb) Lightning strikes: distance from lightning, time delayof the thunderc) A streetlight: its apparent brightness, your distancefrom itd) Cars: weight of car, age of owner
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.
pair of variables. You want to make a
variable would you use as the explanatory variable and
which as the response variable? Why? What would you
tion, form, and strength.
b) Lightning strikes: distance from lightning, time delay
of the thunder
c) A streetlight: its apparent brightness, your distance
from it
d) Cars: weight of car, age of owner
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
