Calculate the following: The fraction of observations in the standard normal distribution that are smaller than 1.5 The proportion of observations in the standard normal distribution that are larger than 0.35 The chance that a randomly drawn observation from the standard normal distribution is between 0.3 and 0.7. The probability P(ZE [-0.2,0.5]), that is, the chance that one observation drawn at random from the standard Normal distribution, Z, will be in the interval [-0.2, 0.5].