Z-scores

Z-score formula:
Z= (x-xbar)
---------
ox
" the z score measures the distance plus or minus from the mean in units of std deviation"
x- what you got
xbar- what they got
ox- std deviation
if number is negative its BAD, positive, GOOD!
TO CLR LIST 2nd + 4 ENTER

Characteristics of normal distribution:

Characteristics of normal distribution:
Theoretical (aproximation)
Symmetry about mean
Follows this rule:
68-95-99.7
mean-median-mode
2nd vars gets you to Normal cdf (low value, high value, x, ox)
How do you find out how many fish longer than 40 cm?
Normal cdf(40, E99)
E=2nd --> ,

Boundaries, grouped data

Once you have your grouped data, enter it into your calculator in your lists and then
STAT--> CALC--> 1-var stats--> L2, L2

Mean Median and Mode.
Mean - avg
Median - middle number
mode - happens most
To get std deviation - stat -> calc -> 1-var stats
x-mean
Ex-sum of all numbers
Ex2- sum of all numbers squared
sx- DONT USE
ax- USE! std. dev.
std dev, no spread - 0
big spread, high

Schedule of payments

Today we are using excel to make a schedule of payments. In don want to blog too much because i have to listen it is going by pretty fast and i need to pay attention. Untill we meet again!

To add a payment function - Formulas->insert function->PMT

Whoah! havent blogged in a while! today we are learning about tvm
n=number of times in total interest is compounded.
APPS ENTER ENTER
i%=interest rate as A.P.R.
PV= Present value(value at time now)
PMT=Payment per period
FV= Future value
P/Y= Payments per year
C/Y= compoundings per year

Today we learned the third and forth method of solving sequence problems.

Sept 29/09

Today we start a new unit. I am the class scriber today so you can refer to that blog, that is where i will put my information for today.

For Yesterday..

This post is for yesterday. Yesterday the class finished off there tests. Personally I thought the test was easy. I think I got like, for sure above 90. As for this unit, I thoroughly enjoyed it. Thankyou Mr. Maks.

Homework... Direct vs. indirect.

Turns out that direct and indirect doesn't apply to an entire matrix. If you can get from one point to another with nothing interrupting it is direct, and if you have to go to another point first it is indirect.
a->b = direct a->b->c= indirect
REMEMBER THIS:
A= AB
A^2= A_B
A^3= A_ _B
A^4= A_ _ _B
And so on...

REMEMBER THIS:
If they ask you for a total node to itself connection matrix through AT MOST 2 relays you have to add [A]+[A]^2+[A]^3

Today, Mr.Makzzz wasted our time! We learned that we should NEVER do ANYTHING without a calculator. We learned that you can get the next matricies by multiplying it by itself.

Matricies & Muslims.

Today we talked about transition matricies.

***To get to the next generation: Multiply the answer after the first generation by the original transition matrix!!***

Transition Matricies

This is quite close to what we have been doing lately. I learned how to appropriately put things into graphs... That is all.

Matrix Multiplication.

I HATE this stuff. It is so hard and stupid. We did exercize 5 question 2. When doing this, just remember to look at the labels and you should be set. By labels I mean like looking at the rows and columns. Just make sure you think it through alot before you write it down. Good luck Kellster in 4 months.

Two Finger Method

This method is done by giving a 'thumbs up' with your left hand, than extending your index finger, while your right hand shapes the letter L. With your hands in position, follow a pattern like this:

Goals

Well today, we are supposed to make some goals. Since I'm not a very good writer, I will post them in a list formation.
Goals:
1) This course: To pass with over an 85
2) This semester: To keep up with working and school
3) Next year: To get into BU and get my Bachelor of nursing
4) Next semester: Do REALLY WELL in BIO40
5) Job: To do as best I can so I will have a good reputation
6) Relationships: Get as close as I can to my friends in the next year
7) Comittments: Since this year I am the rugby captain, I have alot more responsibilities, and I intend to do my best to lead the team.

Hopefully all of these goals become a success this year!!

OH yes...

P.s. - S.M.A.R.T. goals are: specific, measurable, attainable, realistic and timely!!