In a Regression Problem the Following Pairs of (X,y)are Given

question 176

Multiple Choice

In a regression problem the following pairs of (x,y) are given: (3,1) , (3,-1) , (3,0) , (3,-2) and (3,2) .That indicates that the:

• A) correlation coefficient is -1/2.
• B) correlation coefficient is 0.
• C) correlation coefficient is 1.
• D) coefficient of determination is 3.

---

Definitions:

Sample Size

The number of observations or elements within a sample, crucial for achieving accurate and reliable statistics.

Parameter

A numerical characteristic that describes and summarizes an aspect of a population in statistics.

Unbiased Estimator

A statistical estimator whose expected value is equal to the parameter being estimated, indicating accuracy across samples.

Expected Value

The long-run average value of repetitions of the same experiment or random process, calculated as the sum of all possible values weighted by their probabilities of occurrence.