Not sure what I am missing
I am fairly confident that my code is right. I must be missing something simple. Not sure what it is, the video was short and simple.
var data = [ '6', '5', '4' ];
You have the right syntax for an array but task 1 is asking specifically for 3 numbers. You've put quotes around your numbers which makes them strings and not numbers anymore.
If you remove the quotes then you should be able to pass task 1.