Ch 3_3_11 - 5.227897 50370.85706 40-44 377 42.5 16022.5...

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#11 page 163 Class Number of Multiple Births Midpoint x i* f i Mean x i -mean (x i -mean)sq*f i 15-19 93 17.5 1627.5 32.2721 -14.7721 20293.99817 20-24 511 22.5 11497.5 32.2721 -9.7721 48797.43489 25-29 1628 27.5 44770 32.2721 -4.7721 37074.39407 30-34 2832 32.5 92040 32.2721 0.227897 147.0853949 35-39 1843 37.5 69112.5 32.2721
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Unformatted text preview: 5.227897 50370.85706 40-44 377 42.5 16022.5 32.2721 10.2279 39437.92179 7284 235070 196121.6914 Standard Deviation Mean 5.18893 32.2721 b) graph is roughly bell shaped c) 95% of mothers of multiple births will be between 21.9 and 42.7...
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