Question

Please box or bold font answers

Suppose that the diameters of oak trees are normally distributed with a mean 4 feet and standard deviation of 4 inches.

Step 1 of 5:

What is the probability of finding a tree with diameter of more than 3.75 feet?

Step 2 of 5:

What is the probability that the tree you find is between 3.75 and 4.75 feet in diameter?

Step 3 of 5:

Interpret your probability from the previous step.

Step 4 of 5:

If we wanted to look at the top 15% of trees, what would their minimum diameter be?

Step 5 of 5:

If we know that all the trees in our neighborhood are in the bottom 5% of tree diameters, what is the largest one we could expect to find?

Answer 1