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avatar+2448 

I think the second one is 18/350 (Guessing I need to simplify that, so 9/175??)

 Apr 13, 2018
 #1
avatar+557 
+2

you made a slight mistake

it says specifically Type B printer so 18 + 102 = 120 printers in total for Type B printers

18/120 = 9/60 = 3/20

 

winkwinkwink

 Apr 13, 2018
edited by lynx7  Apr 13, 2018
edited by lynx7  Apr 13, 2018
 #2
avatar+2448 
0

Ty but what about the first one?

EDIT: oh...>.<

RainbowPanda  Apr 13, 2018
edited by RainbowPanda  Apr 13, 2018
 #3
avatar+429 
+2

p(type b-defective)=18/120

p(type b-defective)=3/20

 

smileysmileysmiley

 Apr 13, 2018
 #4
avatar+2448 
0

Thank you both! But what about the first question? >.<

 Apr 13, 2018

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