Under the standard normal curve, what is the area between 2 = 0 and z = .75? * (2 Points) Find the 2 value such that the area under the standard normal distribution curve between 0 and the 2 value is 0.2123. * (2 Points) 0.2123 A desktop PC uses 120 watts of electricity per hour based on 4 hours of use per day. Assume the variable is approximately normally distributed and the standard deviation is 6. Find the 2 value corresponding to 106. A desktop PC uses 120 watts of electricity per hour based on 4 hours of use per day. Assume the variable is approximately normally distributed and the standard deviation is 6. If 500 PCs are selected, approximately how many will use less than 106 watts of power? * (2 Points) The ages of internet users are approximately normally distributed with mean and standard deviation of 36.9 years and 13.9 years, respectively. Suppose you wish to find the 80th percentile of this distribution. Draw the gure and the desired area (See: upload file)