One of the advantages of using Excel is that when you change some of your data, you can obtain the new result quickly. To illustrate that, we would like to know how the mean changes if one of the elements, say 35, in our data increases.

Click on cell A2 where the 35 is located. Now type 56 instead.

Press enter.

Observe how both means automatically change into 59.6.

Ex 1. Did the mean increase or decrease? Put your result in cell A13

Ex 2. Why? Put your explanation in cell A14