October.28th

today we learned more about Normal Disturbutions and  how to form a percentage to a score /value.  and we learned a different method on the calculator. All the notes and recording is above.

Wednesday October.27th Statistics

Today we reviewed some of the stuff we learned on monday, we also learned method 2 on our calculaters that is showed above. We used a website that showed us the other way of doing it, the link is http://www.ronblond.com/M12/norm.big.APPLET/index.html 

Normal Distributions

Today Mr. Maxsymchuk gave us these notes on Normal Distributions. He went through mean, median, and mode, Characteristics of Normal Distributions, and also the 68-95-99.7 rule.

Here is a website to practice with:

www.shodor.org/interactive/activities/Histogram

Statistics - Std. Dev. of Pop.

Mean = 4.8
Mode = 0, 3, 4
Median = 3.5
MinX = 0
MaxX = 14
Standard Deviation of Population = 4.86766158


To Make a List:
1. STAT
2. Edit > Enter
3. Insert Data

To Get Mean, Mode, Median, Std. Dev. of Pop. etc...:
1.STAT
2.---> Calc > Enter
3. 1-Var Stats> Enter
4. 2nd Func > 1

Stats thing

Stuff I did on my calc

1. Stat
2.1:Edit
3.typed in values
4.Stat
5. Calc
6. 1:1-Var Stat
7.2nd 1
8. Enter

Answer

Average: 26.6
Sum: 399
SDP: 44.9 or 43.4
Med: 15
Max X: 180

Stats

Standard Deviation

• mean=1.9
• n=10
• med=2
• minx=0
• maxX=3
• standared diviation of a population=.9433981132

standard deviation

Standard Deviation

·         turn on calculator

·         press stat then enter

·         in list one place  # of sms per day  6,30,40,100,130,3,30,125,50,70,20,100,50,70,70,0,250,2

·         press 2^nd function

·         press stat

·         press calc

·         press enter

Answers:

Mean: 61.3583543

Median : 50

Mode: 70