Consider the given table for grade 10 students’ scores in a mathematics test, in a certain school.The scores were recorded out of 50.Scores Observations Frequency21 - 25 21, 23, 23, 25, 25 526 - 30 29, 29, 29 331 - 35 32, 33, 34, 35, 35 536 - 40 38, 38, 38, 38, 40, 39, 38, 39, 39, 40 1041 - 45 44, 44, 44, 44, 45, 45 646 - 50 49, 49, 50 3The number of students who obtained more than 60% score isA. 0B. 24C. 27D. 32
Question
Consider the given table for grade 10 students’ scores in a mathematics test, in a certain school.The scores were recorded out of 50.Scores Observations Frequency21 - 25 21, 23, 23, 25, 25 526 - 30 29, 29, 29 331 - 35 32, 33, 34, 35, 35 536 - 40 38, 38, 38, 38, 40, 39, 38, 39, 39, 40 1041 - 45 44, 44, 44, 44, 45, 45 646 - 50 49, 49, 50 3The number of students who obtained more than 60% score isA. 0B. 24C. 27D. 32
Solution
The question is asking for the number of students who scored more than 60% in the test. Since the test is out of 50, 60% of 50 is 30. Therefore, we are looking for the number of students who scored more than 30.
From the table, we can see that the scores are grouped into ranges. We need to count the number of students who scored in the ranges above 30.
- 31 - 35: 5 students
- 36 - 40: 10 students
- 41 - 45: 6 students
- 46 - 50: 3 students
Adding these up, we get 5 + 10 + 6 + 3 = 24 students.
Therefore, the answer is B. 24.
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