Learn Advanced Array Methods by Building a Statistics Calculator - Step 46

JavaScript
1

Tell us what’s happening:

why is this wrong? is it because I am using a brave browser or was it my settings? or was it my code?

Your code so far

const getStandardDeviation = (array) => {
const variance = getVariance(array);
let standardDeviation = Math.pow($variance^{1/2}$)
}

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Challenge Information:

Learn Advanced Array Methods by Building a Statistics Calculator - Step 46

2

What error are you getting?

3

SyntaxError: unknown: Unexpected token (45:47)

43 | const getStandardDeviation = (array) => {
44 | const variance = getVariance(array);

45 | let standardDeviation = Math.pow($variance^{1/2}$)
| ^
46 | }

4

This error please help

5

I don’t know if its my settings or my code but the code was not accepted and when I look at the console it points at the backslash or division operator of the “1/2”

6

This is not inside a literal so you don’t need the $ or {} - but the 1/2 should be in ()

2 Likes
7

I feel ashamed thank you!

1 Like
8

Idk how you solve it since the solution didn’t exactly address the issue, Imma just leave this reply for future reference.

This is the correct syntax to get the base raised to a power:

Math.pow(base, exponent);

So with that in mind and looking again at the instructions for this step:

Declare a standardDeviation variable, and use the Math.pow() function to assign it the value of $variance^{1/2}$.

Just take the variance variable as the base, and 1/2 as the exponent.

4 Likes
9

Thanks for this, tbh this should be what the actual instruction for this step says.

10

Thank you so much, this was very helpful!,…

11

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