Question

calculate median class interval 1-4,4-7,7-10,10-13,13-16,16-19 frequency 6,30,40,16,4,4​

Answer 1

Hey mate here we go

$median \: = \frac{ n+ 1}{2} .....odd num\\ median = \frac{n}{2} .....even \: num \\ now \: we \: have \: them \: in \: ascending \: order \\ 4 \: \: 4 \: \: 6 \: \: 16 \: \: 30 \: \: 40 \\ now \: here \: even \: numbers \: are \: there \\ \\n = 6 \\ i.e \: \frac{6}{2} = 3 \\ therefore \: nw \: \frac{3rd + 4th}{2} \\ median = \frac{6 + 16}{2} = \frac{22}{2} = 11 \\ therefore \: \\ median \: for \: this \: problem \: is \: 11$

I hope this helps you

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