Sunday
April 20, 2014

Homework Help: statistics

Posted by david on Sunday, June 23, 2013 at 9:51pm.

6. According to the records of Enersource, an electric company serving the Mississauga area, the mean electricity consumption for all households during winter is 1650 kilowatt-hours per month. Assume that the monthly electricity consumption during winter by all households in this area have a normal distribution with a mean of 1650 kilowatt-hours and a standard deviation of 320 kilowatt-hours
a) Find the probability that the monthly electricity consumption during winter by a randomly selected household from this area is less than 1950 kilowatt hours.
b) What percentage of the households in this area has a monthly electricity consumption of 900 to 1300 kilowatt- hours?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - According to insurance records a car with a certain protection ...
Statistics - According to insurance records a car with a certain protection ...
statistics - if your HIM department has 100,000 active medical records and you ...
Statistics - Of 5,352 requests for medical records, 4,256 were located in the 20...
Statistics - Of the 5,352 requests for medical records, 4,257 were located ...
statistics - Of the 5,352 requests for medical records in the question above, 4,...
Health statistics - Of the 5,352 requests for medical records in the question ...
Applied Physics - Which is a vector quantity? electric energy electric charge ...
statistics - The average electric bill in a residential area is $72 for the ...
math, pre- statistics - Hospital records indicated that maternity patients ...

Search
Members