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OpenStudy (anonymous):
the table shows the weights of 100 children in year 9. An estimate of the mean weight of the children is calculated as 43 kg. Calculate values of a and b weight, w(kg) 21-29 30-38 39-47 48-56 57-65 frequency 12 21 38 a b hence, find the median, mode and standard deviation.. could any one help me....with thanks...
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OpenStudy (anonymous):
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