Grade distribution A statistics teacher claims that on the average 10 00 of her students get a grade of A 20 00 get a B 10 00 get a C 35 00 get a D and 25 00 get an F The grades of a random sample of 100 students were recorded The following table presents the results Category A B C D F Observed 8 8 15 46 23 Can you conclude that the distribution of the grades differs from the teacher s claim Use the a 0 05 level of significance Part 0 3 Part 1 of 3 a How many students got a B How many got an A There were B grades and A grades Espa ol 8E0 2