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A school population consists of 33 seventh-, 47 eighth-, and 37 ninth-grade students. If we select one child at random from the total group of students, what is the probability that the child is in the ninth-grade

Respuesta :

Answer:

Step-by-step explanation:

Total number of students: 33 +47 +37 = 117 students

Students in 9th class = 37

So probabilty of selecting a 9th class student from a class of 117 students is:

=>(Total student in 9th class)/(Total student in the sample)

=>37/117 =>Ans

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