Math, asked by antonyanuj380, 1 year ago

The average height of 40 students is 150cm. it was later detected that one observation 165 cm was wrongly copied as 125 cm for computation of mean. find the correct mean height

Answers

Answered by Ritu091

1

avg ht=total ht/no. if students
150=total ht/40
total ht=6000
correct total ht=6000-125+165=6040
mean=total ht/no. of students=6040/40=151

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