Answer to Question #65676 in Statistics and Probability for Manpreet Singh

Question

a) The genetic features of a group of adult mice are such that the probability of an offspring
being albino is 0.2. If 50 offsprings are born to a group of such mice, find the probability that
15 or more of them are albinos. (4)
b) The urinary secretion rate (mg./24 hours) of patients suffering from disease A is normally
distributed with mean 5 variance 1, while the corresponding rate for disease B is normally
distributed with mean 7 variance 4. A patient is classified as suffering from disease A and
disease B if his rate is more than 5.5 and up to 5.5 respectively. What is the probability of
misclassification if disease A is twice as common as disease B?