Math, asked by boreengti24, 1 year ago

find the mean and median from the following data side of item 10 11 12 13 14 15 16 and frequency 2 7 11 15 10 4 1

Answers

Answered by veerukhugar
2

Hey mate here we go

lets \: write \: those \: numbers \\items - frequency \\  10 - 2 \\ 11 - 7 \\ 12 - 11 \\ 13 - 15 \\ 14 - 10 \\15 -  4 \\ 16 - 1 \\ here \: we \: write \: formula \: for \: mean \\ mean =  \frac{sum \: of \: observation}{no \: of \: observation}  \\ mean =  \frac{2 + 7 + 11 + 15 + 10 + 4 + 1}{7}  \\ mean =  \frac{50}{7}  \\ mean = 7.142 \\ nw \: we \: will \: write \: formula \: for \: median \\ median =  \frac{ n+ 1}{2}  ....\: when \: odd \\ median =  \frac{n}{2}  \:  \\ so \: we \: have \: to \: write \: them \: in \: ascending \:  \\ order \\ 1 \: 2 \:  \: 4 \:  \: 7 \:  \: 10 \:  \: 11 \:  \: 15 \\ numbers \: are \: in \: odd \\  \: so \: median =  \frac{7 + 1}{2}  = 4 \:  \\ so \: 4th \: number \: is \: median \\ i.e \:  < 7 >

I hope this will help you

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veerukhugar: plz mark my ans as brainliest after anybody giving ans
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