Probability that a randomly selected monthly cell phone

Reference no: EM1391745

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?

Reference no: EM1391745

Questions Cloud

Assume that you are offered a new piece of equipment : Assume that you are offered a new piece of equipment for $10,000.The equipment will produce 10,000 units per year with a margin of $6.00 per unit

Probabilities for normally distributed data : A local bank reported to the federal government that its 5,246 saving accounts have a mean of $1,000 and standard deviation of $240.

Allowing employess transferred to the outsourcing partner : allowing employess transferred to the outsourcing partner to rejoin the firm e. adverse corporate tax implications of assets transfers t the outsourcing partner

Discuss the principle of segregation : Discuss the principle of segregation? Explain why is it important? Determine the concept of dominance? How does dominance differ from incomplete dominance.

Probability that a randomly selected monthly cell phone : What is the probability that a randomly selected monthly cell phone bill is more than $100?

Our current equipment is fully deprieciated and can produce : Your current equipment is fully deprieciated and can produce 2,000 units per year with a margin of $4.00 per unit.Should you perchase the new equipment? Under what conditions?

Thoroughly understand conventional approaches : Why does one have to thoroughly understand conventional approaches to problems when they can be solved by ERP

Boost sales and uses social media online : What is the probability that the person thinks that "Made in America" ads boost sales and uses social media online?

Determining sampling distribution : Show the sampling distribution of p if a random sample of 150 insured individuals is used to estimate the proportion having received at least one ticket.

User Account

All Pages