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22 October, 01:43

Lengths of newborn girls are normally distributed with a mean of 49.2 cm and a standard deviation of 1.8 cm. Consider a group of 2000 newborn girls. Approximately how many girls will be 51 cm or shorter?

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  1. 22 October, 01:53
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    Hello,

    51 = 49.2+1.8

    ==> reading table joined : 0.8413 * 2000=1682,6≈1683
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