how do you determine the affects of watching many hours of tv?
DESCRIPTION
How do you determine the affects of watching many hours of TV?. In this lesson you will learn how to interpret scatter plots by identifying positive, negative, or no association. 100 90 80 70 60 50 40 30 20 10. Test score. 1 2 3 4 5 6 7 8 9 10. Homework completed. - PowerPoint PPT PresentationTRANSCRIPT
How do you determine the affects of watching many hours of TV?
In this lesson you will learn how to interpret scatter plots
by identifying positive, negative, or no association.
Let’s ReviewLet’s Review
Homework completed
100908070605040302010
1 2 3 4 5 6 7 8 9 10
Test
scor
e
Let’s ReviewA Common Mistake
Positive
Negative
Let’s ReviewCore Lesson
Homework completed
100908070605040302010
1 2 3 4 5 6 7 8 9 10
Test
scor
eX YPositive
association
Let’s ReviewCore Lesson
X Y
Hours watching TV
Test
scor
e1009080706050
40302010
1 2 3 4 5
Negative association
Let’s ReviewCore Lesson
No association
# of letters in first name
10987654321
1 2 3 4 5 6 7 8 9 10
# of
lette
rs in
last
nam
e
Let’s ReviewCore Lesson
Okay, maybe a little less
TV.
In this lesson you have learned how to interpret a scatter plot
by identifying positive, negative, and no association.
Let’s ReviewGuided Practice
Determine the association in each graph.
Mon
ey e
arne
d
# letters in name
Test
scor
es
Hours worked# mp3 downloads$$ o
n m
usic
card
Let’s ReviewExtension ActivitiesWould you expect a positive, a negative, or no association between the two variables? Explain why.
• A person’s height and the number of letters in that person’s name.• The time spent exercising and the amount of calories burned.• The number of pages printed and the amount of ink left in the printer.
Let’s ReviewExtension Activities
Collect two sets of data that, when collected, would likely have a:• Positive association• Negative association• No association
Let’s ReviewQuick Quiz
Which graph shows a positive association?
# of withdrawals
Calo
ries B
urne
d
# letters in name
Heig
ht
$$ in
ban
k
Time exercising
Let’s ReviewQuick Quiz
What would be the association between shoe size and number of miles traveled to school each day?