+0  
 
0
203
2
avatar+125 

X- 3, 4 ,5 ,6 ,7 ,9

P-0.2,  0.1 ,0.25, 0.05,  0.4

 

choices are

a)6.2

b)5.95

c)6.05

d)5.6

 Apr 18, 2019
 #1
avatar+6046 
0

just take the sum of each value of X time it's probability of occurrence.

 

3(0.2) + 4(0.1) + ... + 9(0.4)

 Apr 18, 2019
 #2
avatar+106533 
+1

We have more data values than associated probabilities....???

 

cool cool cool

 Apr 18, 2019

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