I hate math.

[Jokersvirus]

The following is apart of a single math problem for Business Stats that i had to solve and it took me over 45 minutes to do with the help of a math tutor...

Its very annoying and i nearly lost my mind or what is left of it....



1. Make a chart of all given information
1 20 3.00
2 38 6.00
3 53 9.00
4 45 12.00
5 40 14.00
6 13 16.00
7 5 18.00
8 36 20.00

2. Get your probability percent from the second column we do this by adding them all up and getting a total number of 250. Then we take 250 and divide it by the second column
20 .08
38 .152
53 .212
45 .18
40 .16
13 .052
5 .02
38 .152
3. After this we add up all the numbers in the new table’s second column we come up with 1.008 this number is completely worthless and will not be used again in the equation. Why I was forced to find it I will never ******ing know.

4. Next we take the probability percent and times it by the order in which they appear on the chart. For example .08 times 1, .152 times 2 etc
.08*1 .08
.152*2 .304
.212*3 .636
.18*4 .72
.16*5 .8
.052*6 .312
.02*7 .14
.152*8 1.21

5. Next we add up the new set of numbers we got. This equals 4.64 this number we need for the next step.

6. Now we take 4.64 and subtract it from 1 through 8
1-4.64 2-4.64 3-4.64 4-4.64 5-4.64 6-4.64 7-4.64 8-4.64
3.64 2.64 1.64 .64 .36 1.36 2.36 3.36

7. Now the numbers we got from subtracting we now need to square.
13.24 6.96 2.68 .4096 .1296 1.84 5.56 11.28

8. Now we take these new numbers and times them with the probability numbers we gotten earlier
13.24 6.96 2.68 .4096 .1296 1.84 5.56 11.28
.08 .152 .212 .18 .16 .052 .02 .152
1.05 1.01 .568 .073 .020 .956 .111 1.71

9. Now since we have completed that we add up the bottom row and it equals 5.53

10. Final step: take the square root of 5.53 and get 2.35 which equal your standard deviation.

[insert_cliche_here]

What is this? I don't even...

[Jokersvirus]

This is just a extremely small sample of the crap i do daily in math class

[Mordry]

I don't understand even one word of your math O.o.

But we in Germany are learning math in another way than you do.

[insert_cliche_here]

This is just a extremely small sample of the crap i do daily in math class

All I can say is, sucks to be you. I freakin hated maths. I suppose I still do, except now I only have to deal with it if I'm actually using it, so I guess that's okay.

[Jayhmmz]

Holy ****, after looking at the OP I feel as thick as two planks of wood :/

[LiNuX]

Honest Opinion: Stats isn't math.

I've seen problems like this and they don't really tech you much and most of the time, it confuses the crap out of you unless the teacher is good at the job.

So yeah... Stats != math;

[Jokersvirus]

The thing that confuses me to hell and back is that I have to take a year of math to be able to access a class related to my major. I Dont get that, how does taking a year of gen ed = one major class?

[paecmaker]

Sounds like fun to have math like that (That was an ironic answer)

[Jokersvirus]

lol, I wish it was fun, the class isnt boring which is odd to say the least but the homework and test just blow...