Algebra-1

First, arrange the original data set in ascending order: {1.2, 1.2, 1.5, 1.5, 1.5, 1.8, 2.0}.

There are 7 numbers, so the median is the 4th number, which is 1.5.

When the fruit with a weight of 1.3 kilograms is added, the new data set in ascending order is {1.2, 1.2, 1.3, 1.5, 1.5,...