If the coefficient of variation of height and weight for a group of students is 70% and 60 % respectively then
Answers
Answer:
height is more consistent
Question: If the coefficient of variation of height and weight for a group of students is 70% and 60 % respectively then what is their mean if S.D of height and weight are 16 and 21 respectively.
Answer:
Their mean of height and weight are 22.85 and 35 respectively.
Step-by-step explanation:
For distribution of height,
Coefficient of variation, = 70
Standard deviation, S.D = 16
Since (Standard deviation × 100)/ Mean
⇒ × 100
⇒ Mean = × 100
⇒ Mean = 22.85
Thus, mean of heights for a group of students is 22.85.
For distribution of weight,
Coefficient of variation, = 60
Standard deviation, S.D = 21
Since (Standard deviation × 100)/ Mean
⇒ × 100
⇒ Mean = × 100
⇒ Mean = 35
Thus, mean of weights for a group of students is 35.
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