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It means that the average score of all the students in a class is 70. Ex: Assuming 3 students got the below scores in their English exam for a total score of 100. Student 1 = 60 Student 2 = 70 Student 3 = 80 Total score of 3 students = 60 + 70 + 80 = 210 Average score of 3 students = 210 / 3 = 70
17/51 = 1/3 are boys
3/40 = 0,075 0,075 x 100 = 7,5 % 100% - 7,5 % = 92,5 % correct
which two of these three events are complementary? a. The probablity that a student makes more than 13 mistakes is .32 B. The probability that a student makes 3 or more mistakes is .56 C. The probability that a student makes at most 13 mistakes is .68
Each student sells 9 balloons.