Solve and show your steps: The mean, standard deviation and range of a symmetrical distribution of weights of a group of 20 boys are 40, 5 and 6 Kgs. respectively. Find the mean and standard deviation of the group if the lighted and the heaviest boys are excluded.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Solve and show your steps:
The mean, standard deviation and range of a
symmetrical distribution of weights of a group of
20 boys are 40, 5 and 6 Kgs. respectively. Find
the mean and standard deviation of the group if
the lighted and the heaviest boys are excluded.
Transcribed Image Text:Solve and show your steps: The mean, standard deviation and range of a symmetrical distribution of weights of a group of 20 boys are 40, 5 and 6 Kgs. respectively. Find the mean and standard deviation of the group if the lighted and the heaviest boys are excluded.
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