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avatar+273 

I really hate that it's these three questions, but they all go together, and they all stem from the one explanation!! Sorry again! 

LaughingFace  Apr 26, 2018
 #1
avatar+91046 
+2

Don't worry about it, LF......!!!

 

90.    We have 40 marbles....and we are drawing with replacement.......

 

Blue then Red  =

 

(4/40) * (12/40)  =

 

(1/10) * (3/ 10)

 

3 / 100

 

 

 

91.  Two yellows  =  (8/40) * (8/40)  =  (1/5) * (1/5)  =  1/25

 

92.  Not a green on the first pick...= 24/40  =  3 / 5

 

 

cool cool cool

CPhill  Apr 26, 2018
 #2
avatar+273 
+1

Thank you so much! I just wish I had been able to write it out! :) 

LaughingFace  Apr 26, 2018

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