Rickie is on the high school golf team. He notices that the number of putts he has seems to be related to the number of greens he hits in regulation. He records data from his last twelve 9-hole rounds on the scatter plot below. He fits the line to the data to use for predictions.

Question

Rickie is on the high school golf team.  He notices that the number of putts he has seems to be related to the number of greens he hits in regulation.  He records data from his last twelve 9-hole rounds on the scatter plot below.  He fits the line to the data to use for predictions.

daniellelovee · Answer

attachment

daniellelovee · Answer

Valid	Not Valid
A	14 is the predicted increase in putts with each additional green in regulation.		
B	14 is the slope of the prediction line		
C	14 is the predicted number of putts if he hits no greens in regulation.		
D	14 is the y-intercept of the prediction line

directrix · Answer

Which variable is the independent one?  Greens?

daniellelovee · Answer

yes the x is independent and the y is dependent?

directrix · Answer

If he gets 1 green, then the predicted value is 15 putts

If he gets 2 greens, then the predicted value is 16 putts

I don't see anything going up by 14. Do you?

daniellelovee · Answer

nope nothing hits the 14

directrix · Answer

What is the slope of the regression line? Is it 14?

directrix · Answer

@Daniellelovee

daniellelovee · Answer

would it be one since y=mx+b?

directrix · Answer

ok

directrix · Answer

What about this?

14 is the predicted number of putts if he hits no greens in regulation.

directrix · Answer

Look at the regression equation.

daniellelovee · Answer

so I'm not really understanding sorry :(

daniellelovee · Answer

oh wait no it is not because it is not increasing by 14?

daniellelovee · Answer

@Directrix

directrix · Answer

14 is the predicted number of putts if he hits no greens in regulation.

Put 0 in for x and crank out y for the putts

daniellelovee · Answer

0+14=14 
1+14=15
2=14=16
So I guess you were correct :)

daniellelovee · Answer

so A is true

daniellelovee · Answer

B is false?

daniellelovee · Answer

C is true?

daniellelovee · Answer

and D is true?
@Directrix

directrix · Answer

My ISP server decided to cut my connection to ask me my PW. So strange.

directrix · Answer

I did not get that A is valid.

daniellelovee · Answer

why? can you explain please?

directrix · Answer

I already have and you agreed.


If he gets 1 green, then the predicted value is 15 putts 

If he gets 2 greens, then the predicted value is 16 putts 

I don't see anything going up by 14. Do you?

>>nope nothing hits the 14    <--- You

daniellelovee · Answer

ohh I thought that one was for C im sorry Im horrible with this lesson :(

daniellelovee · Answer

I hope so too and I have time no worries :)

daniellelovee · Answer

thanks for helping me always :)

directrix · Answer

> Im horrible with this lesson :(

I think it is a lack of concentration. After the family is asleep, maybe we should do these.

daniellelovee · Answer

thats the thing my mom is against me staying awake late and wants to put a curfew on me :/

directrix · Answer

On my paper, I am writing:

F
F
T
T

directrix · Answer

Let's move on to another question and hope for the best.

daniellelovee · Answer

lol I know but she wakes up sometimes and starts screaming and I have enough stress as it is

daniellelovee · Answer

alright thank you very much :)

directrix · Answer

You are welcome.