Graph description: question on the distribution of sperm count

The figure shows a histogram of the distribution of sperm count.

The horizontal axis is labelled in 100s from 0 to 300 and has the legend "Sperm concentration (x10⁹/L)". The vertical axis is labelled in 10s from 0 to 50 and has the legend "Number of ejaculates".

The frequencies represented are for intervals of width 20, going from 0-20 to 320-240. The frequences represented by the bars on these intervals are:

Intervals Frequency
0 to 20^- 28
20 to 40^- 29
40 to 60^- 45
60 to 80^- 37
80 to 100^- 35
100 to 120^- 25
120 to 140^- 9
140 to 160^- 8
160 to 180^- 10
180 to 200^- 5
200 to 220^- 1
220 to 240^- 2
240 to 280^- 2
280 to 320^- 1
320 to 340^- 1

Intervals	Frequency
0 to 20^-	28
20 to 40^-	29
40 to 60^-	45
60 to 80^-	37
80 to 100^-	35
100 to 120^-	25
120 to 140^-	9
140 to 160^-	8
160 to 180^-	10
180 to 200^-	5
200 to 220^-	1
220 to 240^-	2
240 to 280^-	2
280 to 320^-	1
320 to 340^-	1

Back to question on distribution of sperm counts.

This page maintained by Martin Bland.
Last updated: 5 July, 2005.