Individual scores of a placement examination are normally


Individual scores of a placement examination are normally distributed with a mean of 84.2 and a standard deviation of 12.8.

If the score of an individual is randomly selected, find the probability that the score will be less than 90.0.

If a random sample of size n = 20 is selected, find the probability that the sample mean will be less than 90.0.

Request for Solution File

Ask an Expert for Answer!!
Basic Statistics: Individual scores of a placement examination are normally
Reference No:- TGS0579873

Expected delivery within 24 Hours