SOLUTION: The total amount being spent on personal calls in a month by employees of a company follows a normal distribution with a mean of $900 and a standard deviation of . Find the pro

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: The total amount being spent on personal calls in a month by employees of a company follows a normal distribution with a mean of $900 and a standard deviation of . Find the pro      Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   


Question 204895: The total amount being spent on personal calls in a month by employees of a company follows a normal distribution with a mean of $900 and a standard deviation of . Find the probability that in a randomly selected month the amount spent on personal calls is less than $750.

A)

0.8333

B)

0.0013

C)

0.1667

D)

0.9987
i just need some ideas and tools to solve this one. i am so bad a t standard deviation! please!!! thankyou more than you know!!!

Answer by stanbon(57967) About Me  (Show Source):
You can put this solution on YOUR website!
The standard deviation is missing from your post.
Cheers,
Stan H.