Part II. Create a normal distribution curve. Use your curve to answer the question. 4) Sarah makes beaded necklaces to sell at art festivals. The number of beads per necklaces follows a normal distribution with a mean of 20 beads and a standard deviation of 5 beads. 95% of the necklaces have what interval of beads? 5) If Sarah makes 600 necklaces, about how many will have less than 15 beads? 6) What percentages of necklaces will have more than 30 beads