The heights of fully grown English oak (also known as Brown oak) trees are normally distributed with a mean of 95 feet and a standard deviation of 10 feet. What proportion of fully grown English oak trees are taller than 110 feet?
Standard normal distribution formula is z = (x - μ) / σ μ = 95 σ =10 z = (110-95) / 10 = 1.5 the probability z>1.5 using the standardization table = 0.0668 P(z > 1.5) = 0.0668
