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Pass array to method return average

 
Greenhorn
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Hi All,

I have tried several different ways of coding for the same task. However, the same Out of Bounds exception keeps appearing. The goal here is to pass an array to a method and have the method return the average of the array. But I can't even get the method to print the average - let alone return it. Here's the code, what's wrong here!? ... Thanks for your time.
 
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Here you are trying to access an element with index one larger than the last one. Index of the last element is list.length - 1.

And please put your code inside code tags.
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