The average height of 12 students in a class was calculated as 152cm. On verification it was
found that one reading was wrongly recorded as 148cm instead of 172cm. Find the correct
mean height?
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Answer:
no of students, =12
average=152
Step-by-step explanation:
total height =152 multiply by 12
total height =1824
172-148=24
1824+24=1848
mean =1848/12
mean= 154
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