Question

Alicia received the following seven scores on her math assignments.

80, 90, 10, 75, 90, 95, 99


Find the mean and median. Which measure of center best represents the data?

the mean

the median

both the mean and the median

neither the mean nor the median

Answer 1

the median is your answer. Hope this helps.

Answer 2

The given set of data is

`80, 90, 10, 75, 90, 95, 99`

As we know , Mean is defined as the sum of the given numbers divide by the total number of numbers.

Hence we can write

`image`

As the mean gets affected with the extreme values so median is the best representation of the centre.

Hence its median.