SOLUTION: Having a lot of trouble with this. Please help and show me how so I can actually learn from all this. Thanks! Occurrences 0 1 2

Question 139730: Having a lot of trouble with this. Please help and show me how so I can actually learn from all this. Thanks!
Occurrences
0
1
2

Probability
0.60
0.30
0.10

#1 Compute the mean number of the incidents
#2 Compute the variance for this distribution
PS- I am allowed to use Megastat on this so any direcetion there would be welcomed as well.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Occurrences
0
1
2
Probability
0.60
0.30
0.10
#1 Compute the mean number of the incidents
#2 Compute the variance for this distribution
--------------------------------
I don't have Megastat but do have a TI calculator
I enter the 0,1,2 in one list
I enter the 0.6, 0.3, 0.1 in a parallel list
-----------
I choose the command 1-Var Stat L1,L2 and I get:
mean = 0.5
variance = 0.67082..^2 = 0.449999..
Cheers,
Stan H.
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