David Dehghani6,992 Points
This is embarrassing that this is not passing. please help
I do not get what is wrong here... It must be something I'm missing.
var data = ["3", "4", "5"];
The problem is not the array itself, but what you have placed in it. When you put quotes around a value it will be treated as a string, which is different from a number (even if the string contains a number), in order to represent a number you just have to type it in without enclosing it in anything. Like this:
var data = [3, 4, 5];