![subject](/tpl/images/cats/mat.png)
Mathematics, 17.02.2020 19:04 purplefish53
The length of human pregnancies from conception to birth varies according to a distribution that is approximately normal with mean 267 days and standard deviation 19 days. Use the 68-95-99.7 rule to answer the following questions.
(a) Between what values do the lengths of the middle 95% of all pregnancies fall?anddays
(b) How short are the shortest 2.5% of all pregnancies?days or less
c) How long do the longest 2.5% of pregnancies last?days or more
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:30
Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:40
Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:00
Which geometric principle is used to justify the construction below?
Answers: 1
![question](/tpl/images/cats/mat.png)
You know the right answer?
The length of human pregnancies from conception to birth varies according to a distribution that is...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 26.09.2019 03:10
![question](/tpl/images/cats/istoriya.png)
History, 26.09.2019 03:10
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 26.09.2019 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 26.09.2019 03:10
![question](/tpl/images/cats/istoriya.png)
History, 26.09.2019 03:10
![question](/tpl/images/cats/en.png)