Question

the mean height of 11 friend is 155.2 cm if one friend whose height is 158 cm leaves find the new mean height








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Answer 1

Answer:

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Answer 2

Explanation:

Mean = 155.2 cm

One whose height is =158 cm leaves

New mean height =

Sum of all observations/ No.of observations

= 155.2-158cm/10

= 142.48cm

HOPE IT HELPS YOU !!