Show:
How to use your graphing calc
Correlations
line of best fit
Misc
Sequences
100

List out directions- how do I enter stat plots

Go to Stat- > edit -> L1 and L2

100
When the values of one data set increases and the other decreases, this is called a ___________ correlation.
negative
100
Why do we draw a line of best fit?
To predict a trend.
100

Calculator- what buttons do I have to use to "quit" out on something on my graphing calc?

2nd - mode

100

A common difference is used for what type of sequence? 

Arithmetic

200

How do I reset my calculator? 

Go to 2nd + (or Mem) or just hit mem. Go to (7) then (1)then reset.

200
When the values for both data sets increase this is called a _______________ correlation.
positive
200
If there is no correlation-is the line positive or negative?
There is no line!
200
What do we use a scatter plot for?
Analyzing if there is a relationship between two sets of data.
200

A ratio is used for what kind of sequences?

Geometric

300

How do I get my line of best fit and my correlation coefficient? Assume I already have my stat plot entered out?

stat- calc-4- make sure lists line up- calc (enter)

300

When the points on a scatter plot are scattered in the graph and do not follow a trend, this is called a ___________ correlation.

no

300
When most of the points are close to the line of best fit, but one is very far, this is called an _______________.
outlier
300
Do arm span and height have a strong or weak correlation?
Strong
300

Find the next term

80,40,20,10,5,2,1

.5

400

how do I graph my line of best fit and stat plots? (assume data is entered for stat plots)

write down linear regression equation ( stat, calc, 4). Then take that info for ax+b and plug that into y=. Then go zoom 9

400
When most of the points very closely follow the line of best fit, this is called a _______________ correlation.
strong
400
Look at the diagram. This is a ___________ correlation. a. strong negative b. strong positive c. moderate negative d. weak positive e. weak negative
weak negative
400
If sales at a ski store increase as the temperature drops-is this a positive or negative correlation?
negative
400

Give me the : Starting #, Common Difference, and what term is this solving for

A(n) = 6 + ( 4-1)(2)

ST- 6

CD- 2

Solving for - 4th term

500

How do I plot my residuals? (assume all I have filled out is my L1 and L2 with my data)

Stat- edit- up to L3- list- resid- enter- stat plot- x list L1- Ylist L3- then zoom 9

500

What happens if I have a pattern in my residual graph?

Your line of best fit is off, therefore something is wrong. 

500
What is the difference between extrapolate and interpolate?
extrapolate- making a prediction beyond the range of the data interpolate-making a prediction within the range of the data
500

Given the first term- write the Arithmetic equation to find term "n"

A(n) = (A1) + ( N-1)(D)

500

Give me the : Starting #, Ratio, and what term is this solving for


A(n) = 6 x 1.5^5-1

ST- 6

Ratio- 1.5

Term looking for- 5th