+0  
 
0
50
1
avatar+2509 

Help 29,30

NotSoSmart  May 15, 2018
 #1
avatar+87293 
+1

29.

 

We want to permute   all possible orders of selecting any 3 students from 10....so we have

 

P (10,3)   = 720 ways

 

 

30.

 

We have 36 possible outcomes.....the ones that sum to 6  are

 

1,5

5,1

4,2

2,4

3,3    =     5 ways

 

So...the probabilitiy  is     5 / 36

 

 

 

cool cool cool

CPhill  May 15, 2018

15 Online Users

avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.