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0
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avatar+337 

Find the estamate mean

 May 4, 2020
 #1
avatar+111326 
+2

We can't say what the individual  costs might be.....but....let's just say that each is at the midpoint of its interval

 

So....the estimated mean  with this assumption  is

 

[ 4(25)  + 8(75)  + 7(125) + 10(175) + 11(225) ]  / [ 4 + 8 + 7 + 10 + 11 ]  =

 

5800  /  40   =  

 

145

 

cool cool cool

 May 4, 2020

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