Question

Please help ASAP

Answer 1

Unless your school lets you use a calculator, you'll need to use the formula for calculating the r value. And I never used that because we were allowed a calculator, so look it up maybe

Answer 2

We can use calculators

Answer 3

So would I just take x and divide it by y?

Answer 4

Do you have a TI 84? If so, go to stat, then edit, and in L1, put one column. Then go to L2 and put the next column. Then go to mode, make sure stat diagnostics is ON, then go back to STAT, then go to CALC, and then go to option 4:LinReg(ax+b). It will tell the linear regression as well as r and r^2 values

Answer 5

No you wouldn't.

Answer 6

No I don't have the TI-84

Answer 7

Or you could spend your lifetime calculating by hand using this formula XD

Answer 8

Fine, gimme a sec, I'll do it on mine

Answer 9

LOL xD

Answer 10

It's 0.771 if x=items purchased and y-hat = bags used

Answer 11

Thank you so much! I owe you.

Answer 12

So is this AP/college statistics? How are you not allowed a TI 84?

Answer 13

I have to buy my own and I'm not gonna buy something for that much and I'm only gonna use it a few times.

Answer 14

And it's prob. and stats.

Answer 15

Oh okay.

Answer 16

Yeah

Answer 17

you can easily do this on a ClassWiz, and so much more. A very cheap date when it comes to doing well in exams.

Answer 18

Wow, just looked it up and it's pretty damn cheap for that type of calculator.

Answer 19

Okay thanks