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निम्नलिखित आँकड़ो का माध्य 18 .75 हो , ...

निम्नलिखित आँकड़ो का माध्य 18 .75 हो , तो p का मान ज्ञात करो |
`{:("x"_(i):, 10,15,p,25,30),("f"_(i):,5,10,7,8,2):}`

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