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January 31, 2015

January 31, 2015

Posted by **wan** on Saturday, November 24, 2012 at 9:49am.

- math -
**Steve**, Saturday, November 24, 2012 at 11:11am24*41.1 + 16g = (24+16)*41.7

g = 42.6

- math -
**PsyDAG**, Saturday, November 24, 2012 at 11:25amMean boys = 41.1 = ∑x/n = ∑x/24

∑x = 986.4

Mean class = 41.7 = ∑y/40

∑y = 1,668

Mean girls = (1668-986.4)/16 = ?

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