Question

the coffident of Variation of two distribution are
60% 0 e 70% and their standard deviation
are 21 and 16 resp.
find the earthmetic
mean​

Answer 1

Answer:

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Step-by-step explanation:

For first distribution:

Coefficient of variation (cv)=60

We know that

cv= standard deviatio / mean × 100

60= 21 / mean × 100

Mean= 21 / 60 × 100

=35

For sound distribution

Coefficient of variation (cv)=70

standard deviation =16

We know that

cv= stand and deviation / mean × 100

70= 16 / mean × 100

Mean = 16 / 70 × 100

=22.85