For the following list of data, calculate (a) the mean, (b) the median, and (c) the mode or modes (if any) 1.8, 5, 6.3, 8,8, 4.8, 2.8, 4.8

(a) The mean is

(a) The mean is:

The sum of the values: 1.8 + 5 + 6.3 + 8 + 8 + 4.8 + 2.8 + 4.8 = 41.5

The sum divided by the number of values: 41.5 : 8 = 5.1875

(b) The median is:

The values in numerical order: 1.8, 2.8, 4.8, 4.8, 5, 6.3, 8, 8

The mean of the two middle values: (4.8 + 5) : 2 = 4.9

(c) The mode is:

The values in numerical order: 1.8, 2.8, 4.8, 4.8, 5, 6.3, 8, 8

The values that repeat most often: 4.8, 8 (both appear twice)