1245 2267 2952 3829 1759 You find a measure of variance for

{12.45, 22.67, 29.52, 38.29, 17.59} You find a measure of variance for this data set. The number on your calculator screen is: 2.98070346. You are instructed to round to three decimal positions. Explain the steps you would use to find your final answer containing the three decimal positions. How often can you repeat these steps in each problem?

Solution

2.98070346

For this number answer is : 2.981

Steps:

1>> See if you are asked to find till three decimal positions then you have to see the fourth digit.

2>> If fourth digit is >=5 then add 1 to third digit from decimal and get the final answer.

3>> If fourth digit is <5 then the number will be as it is to third digit from decimal and get the final answer.