The data list shows the amount of rainfall, in feet, on Mt. Waialeale, Hawaii—one of the wettest places on Earth.

33, 37, 42, 39, 25, 51, 40, 38

What is the population standard deviation, to the nearest tenth, of the data (assuming this is all of the data)?

Question

The data list shows the amount of rainfall, in feet, on Mt. Waialeale, Hawaii—one of the wettest places on Earth.

33, 37, 42, 39, 25, 51, 40, 38

What is the population standard deviation, to the nearest tenth, of the data (assuming this is all of the data)?

pleasehelpme132 · Answer

ill help you if you help me

ubie01 · Answer

@desmarie

retireed · Answer

Do you know the formula for calculating the standard deviation?

ubie01 · Answer

Yes

ubie01 · Answer

Everytime I calculate it though it says the standard of it is 7.41499

retireed · Answer

Good.  The first thing you have to know if the average of all of the numbers.

Calculate the average.

ubie01 · Answer

38.125????

retireed · Answer

That is the average, not the standard deviation.  We need this to get the std dev.

Did you just use a calculator to get the std dev?

ubie01 · Answer

Yes I used a online calculator provided by a teacher...

retireed · Answer

I will show you how to calculated it by hand.  Yes it is tedious, but you will understand it better.

|dw:1473889738758:dw|