SOLUTION: According to a report by Scarborough Research, the average monthly household cellular phone bill is $73. Suppose local monthly household cell phone bills are normally distributed w
Algebra.Com
Question 759440: According to a report by Scarborough Research, the average monthly household cellular phone bill is $73. Suppose local monthly household cell phone bills are normally distributed with a standard deviation of $11.35.
a. What is the probability that a randomly selected monthly cell phone bill is more than $100?
b. What is the probability that a randomly selected monthly cell phone bill is between $60 and $83?
c. What is the probability that a randomly selected monthly cell phone bill is between $80 and $90?
d. What is the probability that a randomly selected monthly cell phone bill is no more than $55?
Answer by reviewermath(1029) (Show Source): You can put this solution on YOUR website!
According to a report by Scarborough Research, the average monthly household cellular phone bill is $73. Suppose local monthly household cell phone bills are normally distributed with a standard deviation of $11.35.
a. What is the probability that a randomly selected monthly cell phone bill is more than $100?
Enter =1-normdist(100,73,11.35,TRUE) on EXCEL, the result is .
b. What is the probability that a randomly selected monthly cell phone bill is between $60 and $83?
Enter =normdist(83,73,11.35,TRUE)-normdist(60,73,11.35,TRUE) on EXCEL, the result is .
c. What is the probability that a randomly selected monthly cell phone bill is between $80 and $90?
Enter =normdist(90,73,11.35,TRUE)-normdist(80,73,11.35,TRUE) on EXCEL, the result is .
d. What is the probability that a randomly selected monthly cell phone bill is no more than $55?
Enter =normdist(55,73,11.35,TRUE) on EXCEL, the result is
RELATED QUESTIONS
According to a report by Scarborough Research, the average monthly household cellular... (answered by stanbon)
According to a report by Scarborough Research, the monthly average cell phone bill is... (answered by ikleyn)
Please help me solve this equation.
according to a report by Scarborough Research, the (answered by Boreal)
Question 1
An Adweek Media/Harris Poll revealed that 44% of U.S. adults in the 18–34... (answered by lynnlo)
The average monthly cellular bill is $73. Suppose local monthly household call phone... (answered by ewatrrr)
The profit P (in dollars) on each cellular phone manufactured by Clear Line Inc., is... (answered by solver91311)
the profit P (in dollard) on each cellular phone manufactured by clear line inc. is... (answered by ikleyn)
A cellular phone company offers several options for using a cellular telephone. One... (answered by stanbon)
Suppose you have a cellular phone in which you have committed to spend less than $30 on... (answered by stanbon)