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QUESTION

Elementary statistics

Bigger animals tend to carry their young longer before birth. The length of horse pregnancies from the conception to birth varies according to a roughly normal distribution with mean 336 days and standard deviation 3 days. Use the 68-95-99.7 rule to answer these questions. 

The lengths of the middle 95% of all horse pregnancies fall between blank and blank. What percent of horse pregnancies are less than 333 days?

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****** ******* **** ** carry their ***** ****** ****** ***** *** length ** horse pregnancies **** *** ********** ** ***** ****** ********* ** * ******* ****** ************ **** **** 336 days and ******** deviation * **** Use the 68-95-997 rule ** answer these ************ ******* ** *** ****** *** ** *** horse pregnancies fall between ******** ***** **** ******* ** horse *********** are **** than *** ********* ********* **** ** 95 ****** ***** *** ** ************ on * ****** ************ lie within * standard ** **** ******* ** *** ** observations ** * ****** distribution lie ****** 2 ******** ********** ** mean and 997% ** observations ** * ****** ************ *** within 3 ******** ********** ** ************ **** ******* middle 95% *** ******* * * 2s and * **** **** * = ** * 2s * *** ***** ***** *** * *** ***** ******* ******** ** ************ ***** The lengths of *** ****** 95% ** *** ***** pregnancies **** ******* 330and *** ** *** required ** ****** **** * = * -3/3 * ** *********** related ** z(-1) * ******** percentage ** *******

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