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• Median, mode and range • • •
B Decide the best way to find:
REMEMBER
a the median height b the median weight c the median age. ~=M•l¥1U~
The value which occurs The value in the middle I The difference between
most often is the mode. of a set of values the largest and smallest
I is the median. value is the range. • Work out the range for: PAGE 61
a their heights b their weights c their ages.
This group of children ore discussing their height, weight and age.
• This table shows heights of another group of children.
II Design a table to show this data.
Hannah Iqbal Julian Katy Leela Mohan Nicky Oliver Paulo
127cm 131 cm 122cm 130cm 133cm 125cm 132cm 130cm
Find: a the modal height b the median height c the range.
B Do you think the group in • is about the some age, younger or older
than the first group?
Explain what you think and why.
CHALLENGE
• Design a table about these 5 children so that the facts
on their cords ore true.
• Make sure the meosurements you choose ore sensible!
• Write the mode for:
a their heights b their weights c their ages.
rn Challenge
Open: design a table to show data. a 138cm b 38kg c 10 years a 135cm b 41 kg c 10 years Open: design a table with heights,
Possible design: q months q months weights and ages consistent with
the mode, median and range given.
1
Name Height Weight Age
Possible solution:
Amy 131 cm 42kg 10 years
3 months a 25cm c q months Name Height Weight Age
Bianca 127cm 26kg 10 years Quintin 128cm 37kg 10 years
6 months 10 months
Cara 138cm 41 kg 10 years Rachel 135cm 33kg 11 years
a 130cm b 130cm
8 months 8 months
David 130cm 44kg 11 years Steve 132cm 26kg 10 years
10 months
Ed 135cm 55kg 10 years
q months The second group is likely to be Tara 11qcm 33kg 11 years
younger than the first group as they 5 months
Finn 152cm 38kg 10 years
are, on average, shorter. Mark 135cm 44kg 11 years
10 months
6 months
Gary 138cm 38kg 10 years
q months