## What is the law of large numbers?

1.      What is the law of large numbers?

2.      If I sell an average of 5 books per day and 7 CDs per day, what is the average number of items I sell per day?

3.      If I charge \$2 per book and \$1.50 per CD in problem 192, what is my average amount of income per day?

4.      Before you can use the rules for variances you must make sure the variables are _____.

For problems 195-203, use the following situation: For Test 1, the class average was 80 with a standard deviation of 10.  For Test 2, the class average was 70 with a standard deviation of 12.

5.      What is the average for the two tests added together?

6.      What is the standard deviation for the two tests added together?

7.      What is the difference in the test averages?

8.      What is the standard deviation for the difference in the test averages?

9.      If I cut the test scores on Test 2 in half and add 50, what is the new average?

10.  What is the new standard deviation for Test 2 in problem 199?

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Pending
31 Jan 2018
Due Date: 01 Feb 2018