1. Given a normal distribution with a = 70 and o = 12, find d. The x value that has 45% of the area above it e. The x value that has 13% of the area below it15 11. The Student Advisory Council decides to sell 150 tickets to be raffled during the Family Day Celebration. One ticket will win 1,000 pesos, two tickets will win 500 pesos, three tickets will win 250 pesos and the rest will win nothing. If you will buy one ticket, what will be your expected gain?3. Given the normally distributed variable X with mean of 27.5 and standard deviation of 3.75, find a. P(Xm) = 0.15392. Given a normal distribution with u = 400 and 2 = 225, find a. The area below 385 b. The area above 414 C. The area between 390 and 407 d. The x value that has 75% of the area below it e. The two x values containing the middle 60% of the area