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Q21: Paper 1 – November 2023
Q21: Paper 1 – November 2023
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Question
21)
The mean length of 5 sticks is 4.2 cm.
Nawal measured the length of one of the sticks as 7cm.
(a) Work out the mean length of the other 4 sticks.
The mean length of 5 sticks is 4.2 cm.
Nawal measured the length of one of the sticks as 7cm.
(a) Work out the mean length of the other 4 sticks.
[3 marks]
Nawal made a mistake.
The stick was not 7cm long.
It was 17 cm long.
(b) How does this affect your answer to part (a)?
[1 mark]
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