Mathematics, 31.05.2021 08:30 jazzy76783

1 If the mean of five observations x, X + 2, x + 4, X + 6, X + 8 is 11. Find the mean of 1st three
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1 If the mean of five observations x, X + 2, x + 4, X + 6, X + 8 is 11. Find the mean of 1st three<...