How did you do that, I really don't see where the -10, 13 and 15 came from unless im being really stupid :|

Printable View

- Jul 17th 2010, 08:09 AMramdrop
How did you do that, I really don't see where the -10, 13 and 15 came from unless im being really stupid :|

- Jul 17th 2010, 10:45 AMundefined
- Jul 18th 2010, 12:14 AMramdrop
Oh right okay, well I solved it to have:

Seeing as -4 is impossible the smallest value must be 0 and the maxium, 7 - Jul 18th 2010, 12:32 AMundefined
You seem to have kept the loosest bounds and discarded the strictest.

Discarding the second and fourth, I get .

IMPORTANT: x is not the value you seek to find the min and max of. You want to find min and max of "the number of male patients under 50 without a back problem" which is 7-x. So...