This probability distribution shows the typical grade distribution for a Geometry course with 35 students. A F Grade Frequency B 10 C 15 D 35 2 Find the probability that a student earns a grade of D or F. p=[?]

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)