Let X represent the full height of a certain species of tree. Assume that X has a normal probability distribution with μ = 104.6 ft and σ = 99.7 ft. You intend to measure a random sample of n = 229 trees. What is the mean of the distribution of sample means?

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?

What is the value of x in the equation7x+2y=48 when y=3