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 tha

We can write your essays! Let our essay writing experts help you get that A in your next essay. Place your order today, and you will enjoy it. No plagiarism.


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?

Writerbay.net

Everyone needs a little help with academic work from time to time. Hire the best essay writing professionals working for us today!

Get a 15% discount for your first order


Order a Similar Paper Order a Different Paper