Lab 2 - Due by the end of Module 3

Complete Lab Exercise 2 in the EMC Lab Guide.  For credit, you only need to answer questions that appear  below (at the bottom of this document).

Note: 

·         Watch the Lab Introduction video to help you complete this (and other) labs.

·         The creation of lab1_01.txt and lab1_02.txt was completed in the Dell/EMC Lab Guide in Lab 1, which we skipped, so you will need to copy/paste these files from our “Get Stuff” link into RStudio, then save them in “Lab01” so you can load them in RStudio.  [Note:  The “Get Stuff” area in Blackboard is within Module 0.  Once in there, click on the file name, highlight the entire contents, then copy/paste into the script area of RStudio.  Then “save as” to LAB01 in a local file location.]

 

Post all answers/screen shots to your class Google Sites page under “LAB02”.

 

Step 6, (1):

Record the value of the 10th line.

 

Step 6, (3):

Record the value of the 1st line here:  (widen your console if necessary to allow the output to fit on one line)

 

Step 8, (2):

Compare the median and the mean. What does it mean if the mean is less than the median?: 

 

Step 8, (3):

How about the mean greater than the median?: 

 

Step 8, (4):

 

Does the min and max value for the quartiles make sense to you? :

 

 

Step 8, (5):

Take a screenshot of the correlation matrix.