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Mathematics 15 Online
OpenStudy (anonymous):

LOL! Little help please :D Fan and Medal!

OpenStudy (anonymous):

Class A Class B Class C 80 72 100 85 90 90 87 85 94 92 84 100 86 91 75 90 78 30 94 94 94 100 86 72 75 82 85 45 78 87 85 86 42 38 78 100 72 95 90 94 90 94 62 88 60 ________________________________________ Question 1 Analyze the data for Class A and Class B. • Part 1: What are the means and standard deviations for Classes A and B? • Part 2: Make a box plot of the data for Classes A and B. Identify the median, first and third quartiles, and minimum and maximum data points. • Part 3: Explain how the values for Classes A and B vary about the mean and median. What information does this give Mrs. Smith?

OpenStudy (demonchild99):

ugh...what the heck...what grade r u in????....jeez

OpenStudy (anonymous):

lol 9th

OpenStudy (demonchild99):

dang kid...im in ninth too but holy crap i dont even understand it are your teachers trying to make you fail.....the only thing i know is how to find mean....

OpenStudy (anonymous):

idk man, i got just regular math and thats what i get. im a red neck slower than muthoosl and they expect that out of me

OpenStudy (anonymous):

Wow... i wanna help but i have no idea

OpenStudy (uri):

what's so hard in this?

OpenStudy (anonymous):

Im so sorry

OpenStudy (uri):

You know how to do part A right? To find mean? @SouthernRebel101

OpenStudy (anonymous):

uri, im kind of slow... thats whats hard on me and is ok

OpenStudy (demonchild99):

hey man im a redneck chick so ...i got stuck in all honors classes and even my work is easier then this.....i would love to help but i just dont understand

OpenStudy (anonymous):

how do you find the mean again?

OpenStudy (uri):

add up all the numbers, then divide by how many numbers there are.

OpenStudy (demonchild99):

dang uri u beet me to it

OpenStudy (uri):

Of course of class A and B as given.

OpenStudy (anonymous):

it says mans, so i do that for all the rows?

OpenStudy (anonymous):

means*

OpenStudy (anonymous):

The mean for class a is 79.

OpenStudy (anonymous):

And I believe the mean for class B is 85 or 85.13

OpenStudy (anonymous):

its 85.13 :D

OpenStudy (anonymous):

Then I guess you subtract the mean for each number and then square that.

OpenStudy (anonymous):

Not fully familiar with this, haven't fully learned it.

OpenStudy (anonymous):

oh ok, i think the C row is 80.86 and you help with the other thing on part A?

OpenStudy (anonymous):

I'll try.. But see if you can figure it out too. Basically what Standard Deviation is, it's the square root of the Variance.

OpenStudy (anonymous):

And to find variance, you would subtract the mean by each number, then square root them.

OpenStudy (anonymous):

lol, now im a little confused

OpenStudy (anonymous):

I understand, it's completely confusing. What's confusing you?

OpenStudy (anonymous):

ok so, i add the number then square them or what?

OpenStudy (anonymous):

No. You take the mean and subtract it by each number, then you find the square root.

OpenStudy (anonymous):

of each number?

OpenStudy (anonymous):

i though you said the mean was 79?

OpenStudy (anonymous):

@iambatman are you able to help a little bit?

OpenStudy (anonymous):

@uri , i still need help. i am still a little lost here :/

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