Question

On day 1, Perry shipped packages and tracked their weight to the nearest kilogram. The packages weighed 1, 8, 1, 12, 1, 11, 7, and 6 kilograms.

On day 2, Perry shipped 12 kilograms more weight than he did on day 1 while shipping the same number of packages.

What is the increase in the mean kilograms per package for the second day compared to the first?

Enter your answer in the box.

Answer 1

1.5kg

Explanation:

The mean for the packages on day 1 will be:

= (1 + 8 + 1 + 12 + 1 + 11 + 7 + 6)/8

= 47/8

= 5.875

The mean for day 2 will be:

= (47 + 12)/8

= 59/8

= 7.375

The increase in mean:

= 7.375 - 5.875

= 1.5