Given data-
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Population
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School Population
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Teachers
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Groups
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Grade 9-12 in Book Binder
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Grade 9-12
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Simple Random Sample
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5 students from each grade
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1 teacher from each grade
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Sample
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5 times 4 = 20
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4 teachers
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There are three stages of testing which include pre-test, intervention and post intervention testing with Algebra as the subject.
As per the situation there are total four grades i.e. 9, 10, 11, and 12. The number of students in each grade is five and the number of teachers in each grade is one.
Additional information
The problem related to Statistics and it defines about calculation of average of students test score and representing it on a graph.
Word limit: 250