Intervals, Graphs And Charts, Measurements Worksheet With Answers Page 22
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27M9.
105 ± 1
then
80 ± 1
1
150 ± 1
1
U1
[2]
M10.
Gives a correct description for B that shows or implies the link between the two
variables
eg
•
The more computers a person has in their home, the fewer hours they
are likely to spend watching television
•
There is negative correlation between the number of hours watched and
the number of computers in the home
•
If you have lots of computers you don’t tend to watch TV much
Accept minimally acceptable description
eg
•
More computers, less watching
•
Fewer computers, more TV
•
More television, less computers
•
LessTV, more computers
•
Negative correlation
! Number of hours watching interpreted incorrectly as number of
televisions
Condone
eg, for the first mark accept
•
The more computers people have, the fewer TVs they have
Do not accept incomplete description
eg
•
If you have one computer you watch more TV
1
Page 22 of 27
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