The scatter plot shows the number of mistakes a piano student makes during a recital versus the amount of time the student practiced for the recital. How many mistakes do you expect the student to make at the recital after 6 hours of practicing?
55 mistakes
B. 37 mistakes
C. 63 mistakes
D. 45 mistakes
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OpenStudy (anonymous):
Please I hope someone can help me
OpenStudy (anonymous):
What does a guess have to do with math?
OpenStudy (anonymous):
I'm thinking its 37 mistakes
OpenStudy (anonymous):
yes exactly.. If this is a math question than you must have left something out...
OpenStudy (anonymous):
Let me see if I can upload the picture
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OpenStudy (anonymous):
OpenStudy (anonymous):
There you go
OpenStudy (anonymous):
A
OpenStudy (anonymous):
I can't read the x unit of the x variable. Is it in hours?
OpenStudy (anonymous):
it's hours.
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OpenStudy (anonymous):
all you have to do is read the graph.
OpenStudy (ujjwal):
find equation of line of regression and substitute time=6hrs in it. you will get the answer.
Or else the easier and the required way:
Read the graph. find the number of mistakes corresponding to 6 hrs. It ca be clearly seen there.