Question on modeling real-world data

Question

sammietaygreen · Answer

attachment

anonymous · Answer

need some help?

sammietaygreen · Answer

Yes, I do. I'm pretty sure I may know the answer but not positive

anonymous · Answer

okay what do you think it is?

imqwerty · Answer

this is a boring question i don't even feel like reading it :)

anonymous · Answer

dude why comment if your not gonna help? i mean wtf? @imqwerty

imqwerty · Answer

i cmnt cause i can  B)

sammietaygreen · Answer

Right? Just ignore him. Haha. I feel like it has to have "-337" in it but I can't tell

anonymous · Answer

Dbag XD and alright, well give me a sec

sammietaygreen · Answer

Thanks! I know it's in regard to regression for sure and there's a lot of those out there hahaha

superdavesuper · Answer

Hint: the question said "as a function of the number of years since 1990" What do u think is the range for x?

sammietaygreen · Answer

is it A?

superdavesuper · Answer

hahahaaa u ARE smart, sammie :)

Right on! Good job!!

sammietaygreen · Answer

I kind of figured it was 123 but wasn't sure. Thank you both!

superdavesuper · Answer

welcome - i didnt do much. u figured it out on ur own @sammietaygreen

anonymous · Answer

Oh damn good job haha sorry i had to do something.. lol

sammietaygreen · Answer

It's fine! I appreciate it anyway, both of you.

sammietaygreen · Answer

Could you both possibly help me with one more question of similar topic?

superdavesuper · Answer

i can try :)

sammietaygreen · Answer

attachment

superdavesuper · Answer

oh this is hard - u actually have to DO some calculations lol

sammietaygreen · Answer

I know! Where do I start?

superdavesuper · Answer

first - note that question is set up the same as last: function of the number of years since 1990. So u should set up a table with the proper x values first.

sammietaygreen · Answer

Okay, is it possible to use my graphing calc since my teacher said to do so?

superdavesuper · Answer

yes, u will need a calc or excel or go online to DO the regression but u still need to set up the table correctly first.

sammietaygreen · Answer

give me one sec

sammietaygreen · Answer

ugh I can't get it

superdavesuper · Answer

What happened?

sammietaygreen · Answer

Like I don't understand it enough to completely plot it out.

superdavesuper · Answer

What exactly do u not understand? No need to plot it out for now; just set up the table first ok?

sammietaygreen · Answer

Okay, do I just do an x, y table?

superdavesuper · Answer

yup yup

superdavesuper · Answer

then i will show u a really cool thing...actually 2 things :)

sammietaygreen · Answer

would the year be x, and population be y?

superdavesuper · Answer

sure

sammietaygreen · Answer

okay.. so what then?

superdavesuper · Answer

ooops sorry - lunch time!

u have the x-y values set up in a table now?

sammietaygreen · Answer

yes