I have a chart that has 4 columns across the top and 33 going down. The colunms on the top read: predicted number, selected number, (col 1 - col2)^2, and the mean of x. Their are 32 predicted numbers and 33 selected numbers. I need to fill in the column that says the mean of x but I am not sure how to do this.

Question

I have a chart that has 4 columns across the top and 33 going down. The colunms on the top read: predicted number, selected number, (col 1 - col2)^2, and the mean of x. Their are 32 predicted numbers and 33 selected numbers. I need to fill in the column that says the mean of x but I am not sure how to do this.

Column 1 reads : 5 -2 49 How would I find the mean for this column?

Answer 1

To find the mean for a column, follow these steps:

1. Add up all the values in the column.
In this case, add the values in Column 1: 5 + (-2) + 49 = 52.

2. Divide the sum by the number of values in the column.
In this case, there are 3 values in Column 1.

So, the mean of Column 1 = 52 / 3 = 17.33 (rounded to two decimal places).

Therefore, the mean of Column 1 is 17.33.