Homework Help: Statistics

Posted by Adam on Monday, July 23, 2012 at 7:53pm.

The amount of a monthly phone bill is normally distributed with a mean of $60 and a standard deviation of $12. Fill in the blanks:
68% of her phone bills are between $______________ and $______________.

Statistics - MathMate, Monday, July 23, 2012 at 8:59pm
This problem is similar to your other question, or your friend's question at:
http://www.jiskha.com/display.cgi?id=1343087495

Answer this Question

Related Questions

Math Quantitive Reasoning - The amount of Jen's monthly phone bill is ...
Math - Use the 68-95-99.7 rule to solve the problem. - The amount of Jen's ...
mathematical modeling - Use the 68-95-99.7 rule to solve: The amount of Jen'...
statistics - The average electric bill in a residential area is $72 for the ...
Statistics - A random variable X is normally distributed with ì = 60. ...
Statistics - A random variable X is normally distributed with ì = 60. ...
Statistics - I am so lost on this statistics question would someone help me ...
Econ/statistics - The monthly earnings of teachers is normally distributed with ...
Analytical Skills - If your score on a statistics exam was 76 and the professor ...
Statistics - Are these statements true or false? 1. The sample mean, the sample ...

For Further Reading

First Name:
School Subject:
Answer: