SOLUTION: The mean weekly income of teachers in one state is $390 with a standard deviation of $45. The incomes are approximately normally distributed. What is the probability that a rando

Algebra ->  Probability-and-statistics -> SOLUTION: The mean weekly income of teachers in one state is $390 with a standard deviation of $45. The incomes are approximately normally distributed. What is the probability that a rando      Log On


   

Question 581900: The mean weekly income of teachers in one state is $390 with a standard deviation of $45. The incomes are approximately normally distributed. What is the probability that a randomly selected teacher earns more than $425 a week?
My answer = 0.215
Thank you!
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The answer is more like 0.2184, but you are very close. My guess is that there was a roundoff error somewhere or the table you're using isn't that accurate.