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Socks in a drawer. In your sock drawer you have 4 blue, 5

OpenIntro Statistics | 3rd Edition | ISBN: 9781943450039 | Authors: David M Diez; Christopher D Barr; Mine Çetinkaya-Rundel ISBN: 9781943450039 86

Solution for problem 2.28 Chapter 2

OpenIntro Statistics | 3rd Edition

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OpenIntro Statistics | 3rd Edition | ISBN: 9781943450039 | Authors: David M Diez; Christopher D Barr; Mine Çetinkaya-Rundel

OpenIntro Statistics | 3rd Edition

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Problem 2.28

Socks in a drawer. In your sock drawer you have 4 blue, 5 gray, and 3 black socks. Half asleep one morning you grab 2 socks at random and put them on. Find the probability you end up wearing (a) 2 blue socks (b) no gray socks (c) at least 1 black sock (d) a green sock (e) matching socks

Step-by-Step Solution:
Step 1 of 3

Simple Linear Regression  Analyzing relationship between 2 variables  X= hours studied Y=test score  Response variable (y)= dependent variable  Explanatory variable (x)= independent variable o Helper o Helps estimate mean of y’s  Scatterplot used to identify o Patterns/ relationships o Outliers  What regression line gives you o Line of means for y population o Prediction of the mean o Value of the regression equation is the “least squares” estimate of the mean of that y subpopulation  Include units!! sample correlation coefficient, r  Measures the strength of the LINEAR association between 2 quantitative variables  P= population corr

Step 2 of 3

Chapter 2, Problem 2.28 is Solved
Step 3 of 3

Textbook: OpenIntro Statistics
Edition: 3
Author: David M Diez; Christopher D Barr; Mine Çetinkaya-Rundel
ISBN: 9781943450039

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Socks in a drawer. In your sock drawer you have 4 blue, 5