SOLUTION: Hello, I am having some trouble with a question for my statistics homework, I hope someone would be able to help me out. I would be very grateful. Human pregnancy lengths are b

Question 181894: Hello, I am having some trouble with a question for my statistics homework, I hope someone would be able to help me out. I would be very grateful.
Human pregnancy lengths are bell-shaped with a mean of 265 days and a standard deviation of 10 days. Use the Empirical Rule to determine the percent of women whose pregnancies are between 255 and 275 days.
Using the Empirical Rule
1.About 68% of the data lie within 1 standard deviation of the mean.
2.About 95% of the data lie within 2 standard deviations of the mean.
3.About 99.7% of the data lie within 3 standard deviations of the mean.
I am stuck. I am very grateful for you using your spare time to help me out . Thank you in advance.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Human pregnancy lengths are bell-shaped with a mean of 265 days and a standard deviation of 10 days. Use the Empirical Rule to determine the percent of women whose pregnancies are between 255 and 275 days.
-----------
255 is one standard deviation below 265.
275 is one standard deviation above 265
---
The percentage of a normally distributed population that lies
within one standard deviation of the mean is 68%
Your answer: 68%
---
Cheers,
Stan H.
---
Using the Empirical Rule
1.About 68% of the data lie within 1 standard deviation of the mean.
2.About 95% of the data lie within 2 standard deviations of the mean.
3.About 99.7% of the data lie within 3 standard deviations of the mean.

RELATED QUESTIONS
Hello! I am having trouble with my homework and I would be very happy if someone could... (answered by Earlsdon)

Hello! I am having trouble with my algebra homework. On one of the equasions we need to... (answered by stanbon)

Hello, my name is Laura and I am having some trouble with m math homework can you please... (answered by Alan3354)

Hi, I am having trouble with my homework. I hope someone helps me with this. Prove... (answered by lwsshak3)

hi..im in 7th grade algebra and i work out of the algebra 1 book published by glenco. i... (answered by stanbon)

Hi, I am having trouble with a problem I hope some one can help me please. Factor... (answered by jim_thompson5910)

I am having trouble with my business math homework could someone please help me? The... (answered by Theo)

I am having trouble with my business math homework could someone please help me? The... (answered by user_dude2008)

my question is if i am able to chat with a tutor via web & him/her help me out with my... (answered by MathLover1,Alan3354)