Scatter Plots
Ex 1: Julie gathered information about her age
and height from the markings on the wall in her house.
Identify the independent
and dependent variables.
a)
Describe the relationship.
b)
Graph the data.
c)
Draw the line of best fit.
Ex 2:
a)
Draw the line of best fit.
b)
Use your line of best fit to predict the number of
goals scored if 35 shots were taken.
c)
Use your line of best fit to predict how many shots
need to be taken to score 14 goals.
Ex. 3
A basketball team recorded the number of points each player
scored vs. the number of shots they took.
a) Identify the independent variable
and the dependent variable.
b) Create a proper scatter plot and
draw the line of best fit.
Shots Taken
50
32
24
15
34
67
19
10
Points
85
54
36
24
60
108
34
20
c) Describe the correlation
and the relationship between the
variables.
d) If a person shot 40 times, how
many points would you expect
them to score?
(show on graph)
e) If a person got 90 points, how many shots did they take? (show on graph)
f) If a person shot 80 times, how many points would they score? (show on graph)
g) For which predictions did we interpolate and for which did we extrapolate?