:- Suppose the weights of bah}.r hippos are normally distributed (in lbs) with a a mean of 45, and a standard deviation of 2. Find the probability that a hippo weighs less than 40 lbs. Find the 90\"\" percentile of the weight of baby hippos Suppose researchers disoover, that the mean weight of hippos was underestimated. To estimate the mean, they take a sample of 43 hippos. The sample results in an average of 50 lbs, and a standard deviation of 3 lbs. :2: Compute a condence interval using both the z and 3 scores. Compare the interval widths