Aschool 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

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

answer: the answer is 40.82

step-by-step explanation: 3.14 x 13(or half of 26) to the power of 2

2 1/2 feet

step-by-step explanation: