Question

From the following data calculate : (a) the range of income of central 50% workers. (b) the range of income of central 80% workers and (c) coefficient of quartile deviation. Income (less than) : 10 20 40 50 60 70

No. of Workers 150 5 8 15 20 30 33 35​

Answer 1

Explanation:



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Question



The following table gives the daily income of 50 workers of a factory:

Daily income (in Rs.)100−120120−140140−160160−180180−200Number of workers:12148610Find the mean, mode and median of the above data

Medium

Solution

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 ClassFrequency

fi Midvalue

xi fixi cf  100−20012 110 1320 12 120−140 14 130 1820 26 140−160 8 150 1200 34 160−1806 170 102040 180−200 10 190 1900 50  ∑fi=50 ∑fi

Answer 2

Explanation:

From the following data calculate : (a) the range of income of central 50% workers. (b) the range of income of central 80% workers and (c) coefficient of quartile deviation. Income (less than) : 10 20 40 50 60 70

No. of Workers 150 5 8 15 20 30 33 35