Question

In a class mean of height of 40 students is 140 8.5 CM mean of 40 students and a teacher is 149 cm find the height of teacher

Answer 1

Answer:

Average height of 40 students = 150 cm (Incorrect mean)

Total sum of height of 40 students = (150×40) cm = 6000 cm

Wrong observation = 125 cm

Correct observation = 165 cm

Correct sum total of heights of 40 students = ( 6000 - 125 +165) cm = 6040 cm

Correct mean = 6040/40 cm = 151 cm

Step-by-step explanation:

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