Obedience school for dogs is a small franchise that offers obedience classes for dogs. some people think that larger dogs are easier to train and, therefore, should not be charged as much for the classes. to investigate this claim, dogs enrolled in the classes were classified as large pounds or more) or small (under pounds). the dogs were also classified by whether or not they passed the obedience class offered by the franchise. % of the dogs involved in the classes were large. % of the dogs passed the class. records indicate that % of the dogs in the classes were small and passed the course
estimate the probability that a dog selected at random from those enrolled in the classes passed the course.