Find the mean of the first six multiplies of 3

1.	Find the mean of the first six multiplies of 3
Answer» No idea 3,6,9,12,15,18 are first three multiples of 3. we know that ,{tex}mean =\\frac{sum \\: of \\: the \\: observations }{number \\: of \\: observations }{/tex}{tex}mean =\\frac{3+6+9+12+15+18}{6}\\\\=\\frac{63}{6}\\\\=\\frac{21}{2}\\\\=10.5{/tex}Therefore,mean = 10.5\xa0

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