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What is the direction and strength of the association between the variables?

 

 

 

 

 

 

 

 

 

 Sep 26, 2019
 #1
avatar+106539 
+1

First one

 

Plotting the training hours on x  and tthe accidents on y we have the following points

 

(0,8)  (12,0)  ( 2,5) (10, 1) (9, 3)  (5,2) (6,2) ( 4, 0)

 

See the graph below

 

 

 

The r value   =  -.7283   .....this indicates a strong negative correlation.....in other words.....the fewer the training hours, the more accidents

 

 

cool cool cool

 Sep 26, 2019
edited by CPhill  Sep 26, 2019
 #2
avatar+106539 
+1

Second one

 

This graph looks to have a moderate  positive correlation

 

 

 

cool cool cool

 Sep 26, 2019
 #3
avatar+106539 
+1

Last one

 

This graph is definitely  strongly negative   !!!

 

 

cool cool cool

 Sep 26, 2019

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