he grades of a group of 1000 students in an exam are normally distributed with a mean of 70 and a

Relax! Stop worrying about deadlines and let our professional writers help you. Hire an essay writer helper and receive a professional assignment before your deadline. We provide writing services for all types of academic assignments.


Order a Similar Paper Order a Different Paper

  • The grades of a group of 1000 students in an exam are normally distributed with a mean of 70 and a standard deviation of 10. A student from this group is selected randomly.
    a) Find the probability that his/her grade is greater than 80.
    b) Find the probability that his/her grade is less than 50.
    c) Find the probability that his/her grade is between 50 and 80.
    d) Approximately, how many students have grades greater than 80?

Great students hand in great papers. Order our essay service if you want to meet all the deadlines on time and get top grades. Professional custom writing is the choice of goal-focused students. Word on the online streets is... we're simply the best!

Get a 15% discount on your order using the following coupon code SAVE15


Order a Similar Paper Order a Different Paper