+0  
 
0
24
3
avatar+550 

 

Markscheme answer is 21/271 = 0.077 and 40/271 = 0.148, but I get 21/236 = 0.089 and 40/236 = 0.170. Am I being stupid or is the markscheme wrong?

Will85237  May 17, 2018
Sort: 

3+0 Answers

 #1
avatar+92458 
0

I do not understand this question Will. Is some of the explanation missing?

 
Melody  May 18, 2018
 #3
avatar+26685 
0

Add up all the numbers to get 236.  In row a1, column b2 is 21, so Probability is 21/236.

 
Alan  May 18, 2018
 #2
avatar+26685 
+1

I get the same as you Will.  Looks like whoever did the marking scheme added an extra 35 into the total!

 
Alan  May 18, 2018

5 Online Users

New Privacy Policy (May 2018)
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  Privacy Policy