The table above gives the marks scored by a group of ...
The table above gives the marks scored by a group of students in a test Use the table to answer the Question below
What is the probability of selecting a student from the group that scored 2 or 3?
111
522
722
611
Correct answer is D
Prob (2 or 3) = prob(2) + prob(3)
Prob (mark 2) =722 + Prob(mark 3) = 522
Prob(2 or 3) =722+522=1222=611
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