Short Answer
In 2000,the average charge of tax preparation was $95.Assuming a normal distribution and a standard deviation of $10,use the approximate areas beneath the normal curve,as discussed in this section,to answer: What proportion of tax preparation fees were between $85 and $105?
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q13: A manufacturer of nails packages 16-penny nails
Q14: An efficiency expert makes periodic checks for
Q15: If the random variable x is
Q16: Given that z is a standard normal
Q17: A zipper manufacturer has found that 1.5%
Q19: A retailer finds that the demand for
Q20: The total area beneath the curve of
Q21: A continuous random variable x is normally
Q22: Which of the following distributions is suitable
Q70: The recent average starting salary for new