Question 1208267
<pre>
Put one more column and one more row on your chart 
for Totals Across and Totals Down. The total of
totals will be equal in the lower right hand corner. 

Department        Male    Female  | Totals Across
----------------------------------|--------------
Software Design    700       900  |    1600
Hardware Design    300       550  |     850
Marketing          800       500  |    1300
Human Resources     40        60  |     100
----------------------------------|--------------
Totals down       1840      2010  |    3850

That makes it easy to answer any of those:

Just find how many in each category and put it over 3850.

I'll do iii for you:
</pre>iii.  Working in Marketing, given that the employee is female?<pre>

500/3850 = 10/77 = 0.1298701299 = 12.99%, approximately.

Edwin</pre>