Intervals, Graphs And Charts, Measurements Worksheet With Answers Page 23
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27Gives a correct description for C that states or implies that the two variables
are not linked
eg
•
How much television a person watches is independent of the number
of mobile phones they have
•
There is no correlation between the number of hours watched and
the number of phones
•
Time watching is not dependent on the amount of mobiles
•
People with lots of mobile phones don’t necessarily watch any more
than those with just one
Accept minimally acceptable description
eg
•
Mobiles don’t affect watching
•
No correlation
•
Not connected
•
No relationship
•
No link
•
No pattern
•
It’s random
•
More or less phones won’t affect hours
•
Number of mobiles doesn’t affect the situation
•
Someone watching 1 hour of TV might have as many
mobiles as someone who watches 8 hours [generality implied]
•
How much is watched depends on the person not on their
mobile phones
Do not accept incomplete description
eg
•
There is a range of numbers of mobile phones and the number
of hours spent watching TV
•
It doesn’t make much difference
! Description of graph’s appearance
Accept alongside a correct response
eg, for C accept
•
It’s all spread out so there is no link
eg, for C do not accept
•
It’s all spread out
1
[2]
M11.
Completes the table for Zhang correctly with frequencies of 7 (for 9 points) and
4 (for 10 points), ie
7
4
2
U1
Page 23 of 27
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