Arithmetic mean:
grouped data

Median

Mode

Arithmetic mean: grouped data

Median:  grouped data

Median (and percentiles):  grouped data

	103,875 x .25 = 25,968.75
	103,875 x .50 = 51,937.5
	103,875 x .75 = 77,906.25

Median (and percentiles):  grouped data

Normal distribution

Positive skew,
or skew to the right

Negative skew,
or skew to the left

Bimodal distribution