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How tall is the new pupil? The mean height of 20 pupils in a class is 156cm.  As a result of a new pupil joining the class the mean height of the class increases by 0.1cm. 

This question is part of Numeracy Assessment for Post-Primary Teachers
Asked by Trishaeaton, Last updated: Jun 05, 2020

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trishaeaton

Trishaeaton

Answered Apr 17, 2019

158.1
158.1cm
 

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