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avatar+30 

What is the probability that19 rolls of a fair die will show exactly three threes​?
 

answer will be decimal with 4 places
 

(I wish this could be done with binomial pdf but I couldnt figure out if that was possible.)

 Apr 22, 2019
edited by treeko  Apr 22, 2019
 #1
avatar+106539 
+1

C( 19, 3)  * (5/6)^16*(1/6)^3  ≈ .2426

 

 

cool cool cool

 Apr 22, 2019
 #2
avatar+30 
+1

Odd, that is what I got aswell but the only answer choices are, .2420, .4840, .0480, .1210
I think I will just go with .2420

treeko  Apr 22, 2019
edited by treeko  Apr 22, 2019

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