MATH 211 Week 2 Discussion | Assignment Help | ERAU
- embry-riddle-aeronautical-university / MATH 211
- 11 Jan 2020
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MATH 211 Week 2 Discussion | Assignment Help | ERAU
Module 2 - Discussion: Standard
Deviation
For this discussion
activity, you will use an applet that deals with the standard deviation of a
numerical data set.
Be sure that you
completed the applet/discussion on Mean
vs Median before doing this activity.
Standard Deviation = The standard deviation is a number that
measures how far a typical observation is from the mean.
Run Applet
Navigate to the Standard
Deviation applet and follow these instructions:
1. Prepare the applet for use.
o Select the “Add point” button and enter a
value of 0 in the input box, then select “OK”.
o Repeat the above step to enter the value 20.
o Select the “Reset” button to remove the
data points, but leave the axis between 0 and 20.
2. Create Set A.
o Insert eight data points approximately evenly
spaced between 0 and 20.
o Record the standard deviation of Set A.
o Select the “Reset” button to clear the data.
3. Create Set B.
o Insert all eight data points very close to 10
on the number line.
o Record the standard deviation of Set B.
o Select the “Reset” button to clear the data.
4. Create Set C.
o Insert four points close to 0 and four points
close to 20.
o Record the standard deviation of Set C.
Post
1. Which data set has the lowest standard
deviation?
2. Which has the highest?
3. Is this what you expected? Why or why not?
Your initial post should be made before the
end of the fourth day of the module to receive full credit.
Return at least once later in the module to comment on two or more classmates’
posts. Do NOT “post and run” – making all three posts in the
same visit. You need multiple visits to the Discussions in order to gain
multiple perspectives by reading all of the posts and replies.
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