Gardening: a Gardner buys a package of seeds 80% of seeds of this type germinate. The Gardner plates 90 seeds. Approximate the probability that fewer than 75 seeds germinate PS. whenever we do a normal approximation problem, we have to adjust the value of x with a correction factor. So, instead of using 75 in your line starting with z= we need to add or subtract .5 to that (so we'll use either 74.5 there or 75.5). Note that "fewer than 75" is the same as <75 Answer is NOT 0.7852
