Line 1: Line 1:
 +
[[Category:MA375Spring2009Walther]]
  
 
For part (a) I just followed an example in the book  and said the answer was 10 choose 3, is this right? I wasn't quite sure how to start part (b). --[[User:Rhollowe|Rhollowe]] 16:46, 4 February 2009 (UTC)
 
For part (a) I just followed an example in the book  and said the answer was 10 choose 3, is this right? I wasn't quite sure how to start part (b). --[[User:Rhollowe|Rhollowe]] 16:46, 4 February 2009 (UTC)
  
 
+
[[Category:MA375Spring2009Walther]]
 +
for part b), can we just consider the cases when 0s are exactly 6,7,8,9,10 and add up those numbers?
 +
I don't see any problem...
  
  

Revision as of 13:57, 4 February 2009


For part (a) I just followed an example in the book and said the answer was 10 choose 3, is this right? I wasn't quite sure how to start part (b). --Rhollowe 16:46, 4 February 2009 (UTC) for part b), can we just consider the cases when 0s are exactly 6,7,8,9,10 and add up those numbers? I don't see any problem...

Alumni Liaison

Ph.D. 2007, working on developing cool imaging technologies for digital cameras, camera phones, and video surveillance cameras.

Buyue Zhang