You are given a JavaScript function arrayAverage(ar) that, passed a one-dimensio

ID: 3930524 • Letter: Y

Question

You are given a JavaScript function arrayAverage(ar) that, passed a one-dimensional

array ar of numbers, returns the average of the number is ar. For example,

arrayAveraqe ( [1, 2, 3, 4 ] )

Returns 2.5.

Write a JavaScript function averageProps(obj) that takes an object obj whose property

values are one-dimensional arrays of numbers. It returns an object with the same properties (that

is, keys) as obj but the corresponding values are the averages of the numbers in the associated

Arrays. For example,

averageProps( { Al: [3,5,7], Ed: [2,4], Ken: [4] } )

Returns the object

(Al: 5, Ed: 3, Ken: 4}

function arrayAverage(ar)
{
var total=0;
for (var i=0;i<ar.length;i++)
{
total=total+ar[i];
}
var avg=total/ar.length;
return avg;
}

function averageProps(obj)
{
   var objA={};
   for (var key in obj)
   {
      objA[key]=arrayAverage(obj[key]);
    }
   return objA;
}

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