The weight of students from a class 52,54,55,53,56 , 54 , 54. Find their mean

54 kg

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58 kg

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60 kg

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57 kg

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Solution

The correct option is A
54 kg

Number of observations = 7

The Sum of the total weight of the students =

Total weights of 6 students = 52+ 54+ 55+ 53+ 56+ 54 + 54 =378 kg

Mean = $\frac{S u m o f t h e t o t a l o b s e r v a t i o n}{N u m b e r o f o b s e r v a t i o n}$

= $\frac{378}{7}$

= 54 kg

The mean weight of 7 students = 54 kg

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