Question 1186599: Let X represent the full height of a certain species of tree. Assume that
X has a normal probability distribution with a mean of 64 ft and a standard deviation of 7.3 ft.
A tree of this type grows in my backyard, and it stands 56.7 feet tall. Find the probability that the height of a randomly selected tree is as tall as mine or shorter.
P(X<56.7)=
My neighbor also has a tree of this type growing in her backyard, but hers stands 74.2 feet tall. Find the probability that the full height of a randomly selected tree is at least as tall as hers.
P(X>74.2)=
Enter your answers as decimals accurate to 4 decimal places.
Answer by ikleyn(52835)   (Show Source):
You can put this solution on YOUR website! .
Go to online (free of charge) normal distribution probability calculator
https://onlinestatbook.com/2/calculators/normal_dist.html
Input the given parameters of each part into the appropriate window of the calculator and get the answers
to your questions.
The calculator has perfect description and design, so EVERY person, even beginner, may work with it on his or her own,
even having minimum knowledge on the subject.
Happy calculations ( ! )
//////////////
// I am not a promoter of this online calculator: my only wish is to teach you to do this simple job on your own,
because the level of complexity of this assignment is as 1 + 2 = 3 (even lower than 2 x 2 = 4).
Playing with this tool, you will gain all missing knowledge on the subject, which you need.
|
|
|
