SOLUTION: (Can someone please help?) The weights (in grams) of the contents of several small bottles are 8, 4, 3, 6, 7, 1 and 5. What is the sample variance? 5.81 4.33 5.67 2.22

Algebra ->  Test -> SOLUTION: (Can someone please help?) The weights (in grams) of the contents of several small bottles are 8, 4, 3, 6, 7, 1 and 5. What is the sample variance? 5.81 4.33 5.67 2.22      Log On


   

Question 857487: (Can someone please help?)
The weights (in grams) of the contents of several small bottles are 8, 4, 3, 6, 7, 1 and 5. What is the sample variance?
5.81
4.33
5.67
2.22
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

this belongs in the statistics section

If You are going to do these types of problems

You either need a very good calculator or spreadsheet

	x	x - 6.71	(x-6.71)^2

	1	-3.86	14.8996

	3	-1.86	3.4596

	4	-0.86	0.7396

	5	0.14	       0.0196

	6	1.14	       1.2996

	7	2.14	       4.5796

	8	3.14	       9.8596

sum	34		      34.8572

sum/7 is 6.71	       sum/6	5.809533333  0r 5.81 is the variance