Discover the answers to your questions at Westonci.ca, where experts share their knowledge and insights with you. Experience the ease of finding reliable answers to your questions from a vast community of knowledgeable experts. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

a school principal claims that grade 11 have a mean grade of 86 with a standard deviation of 4. suppose that the distribution is approximately normal, what is the possibility that a randomly selected grade will be less that 84?