Week 3 Exercise 67 -

[gmy5011]

Hi,

I'm having problems with week 3 exercise 67.

I am getting a 50% successful on this exercise. Tes 1 and 2 pass, but test 3 and 4 fail. I have checked the variance of the list of numbers ([1,3] and [2,9,1,3,5]) that are failing, but my code returns the correct variance number. SO I am not sure what is going on.

"The method should be called only once!
When variance was called with list [1,3] java.lang.AssertionError:
Unexpected method call Variance.average([1, 3]):
Variance.average([1, 3]): expected: 1, actual: 2"

"The method should be called only once!
When variance was called with list [2,9,1,3,5] java.lang.AssertionError:
Unexpected method call Variance.average([2, 9, 1, 3, 5]):
Variance.average([2, 9, 1, 3, 5]): expected: 1, actual: 2"     

    

The link to my work is here: https://tmc.mooc.fi/mooc/paste/mDnl6v22xDJ9dgLiXFdU1g

Best regards,

gmy5011

[Jarmo Isotalo]

So you should calculate the average for the list just once (per call to the variance). So move it out of the loop.

-Jarmo

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[gmy...@gmail.com]

Thank you for the help on both my problems!