Update: Mastering problem in Homework Review Ch 1c (1.6), problem 1.73

[Zellmer, Robert]

Pearson has updated this question.  However, it's not easy to make it retroactive.
Skip Parts D and E and after the due date I will go back and give credit for these
parts to everyone.  Do Parts A-C, calculate the deviations and average deviations
for Parts D and E.  You can use them to answer part F.

Here's an example.  The numbers will likely be different than the ones you got
since they're randomly generated.

For Part D, my data is 34.43, 34.40, 34.45, the avg. is 34.43.  The absolute values of the
deviations are 0.00, 0.03, 0.02 (subtract each number from the average and take the
absolute value).  Then calculate the average of these deviations.  For my numbers, the
average deviation is 0.05/3 = 0.01666 = 0.02.

For Part E, my data is 34.52, 34.55, 34.49, the avg. is 34.52.  The absolute values of the
deviations are 0.00, 0.03, 0.03 and the average deviation is 0.06/3 = 0.02 .

When you compare the avg. dev. of the two data sets look at the unrounded averages.
You can see for this data, the avg dev for set 1 is a little smaller than for set 2 so set 1
is more precise.  You can see this in the deviations themselves, for set 1 they're closer
to each other.

Dr. Zellmer


From: Zellmer, Robert <zellmer.1 at osu.edu>
Sent: Monday, August 29, 2022 4:20 PM
To: cbc-chem1210 at groups.asc.ohio-state.edu
Cc: cbc-chem1210-ta at groups.asc.ohio-state.edu
Subject: Mastering problem in Homework Review Ch 1c (1.6), problem 1.73

In Homework Review Ch 1c (1.6) problem 1.73 there's a mistake in Parts D and E
of this question for the answers.  It doesn't seem to be giving the correct answer.
Enter your answer as you've done it.  If it states it's wrong just move on.  I've sent
something to Pearson.

I'll figure out later how I'll take care of those parts.

Dr. Zellmer
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osu.edu/pipermail/cbc-chem1210/attachments/20220831/3f0c5cd4/attachment-0001.html>