Question

Calculate the average (arithmetic mean)of the list of numbers shown in the table (rounded to the nearest tenth) 1049.0 1180.0 1180.1 1348.7

Answer 1

The average of the list of numbers is 1189.5

Explanation:

Mean of a data-set:

The mean of a data-set is the sum of all values in the data-set divided by the number of values.

In this question:

Sum:

1049.0+1180.0+1180.1+1348.7 = 4757.8

Mean:

4 values, so:

4757.8/4 = 1189.5

The average of the list of numbers is 1189.5