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Why is it important to visualize the relationship in a scatterplot before performing a correlation?

Explain why it can be beneficial to use regression & the line of best fit

If a researcher found that there was a correlation of r = -0.67 between the number of siblings a person has and introversion, and the researcher sampled n = 30 people, what conclusions can you make about this relationship?

Explain why correlation does not equal causation

How are correlations different than all of the other hypothesis tests we've run before?

Athlete Contract Negotiations (regression tree). Casey Deesel is a sports agent negotiating a contract for Titus Johnston, an athlete in the National Football League (NFL). An important aspect of any NFL contract is the amount of guaranteed money over the life of the contract. Casey has gathered data on 506 NFL athletes who have recently signed new contracts. Each observation (NFL athlete ) includes values for percentage of his team's plays that the athlete is on the field (SnapPercent), the number of awards an athlete has received recognizing on-field performance (Awards), the number of games the athlete has missed due to injury (GamesMissed), and millions of dollars of guaranteed money in the athlete's most recent contract (Money, dependent variable).Row Canonical Form 2 4 5.) 2 4 5 6.) 1 2 -5 13 5 6 34 pts Question 7 If you know the values of a quantitative Y and five quantitative X's, then in an attempt to predict Y you can use if you have a linear model and if you do not. Repression Trees Logistic Regression Regression Neural Networks Exponential Smoothing Moving Averages Classification Trees Regression Trees 4nts