The lower quartile of 50 students in their final test in Mathematics 10 is 20. Which of the following statements is true?
A. Twenty-five percent of the students got a score of less than or equal to 20.
B. Seventy-five percent of the students got a score of less than or equal to 20.
C. Thirty students got a score of 20.
D. Twenty percent of the students got a score of greater than or equal to 20.
A. Twenty-five percent of the students got a score of less than or equal to 20.
B. Seventy-five percent of the students got a score of less than or equal to 20.
C. Thirty students got a score of 20.
D. Twenty percent of the students got a score of greater than or equal to 20.
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QUARTILES
A. Twenty-five percent of the students got a score of less than or equal to 20.
Explanation:
The lower quartile represents the 25th percentile, meaning 25% of the students scored less than or equal to 20. Option A accurately reflects this statement. Option B is incorrect because it states the opposite. Option C does not provide enough information to be determined from the given data. Option D is also incorrect because it refers to the percentage of students who got a score greater than or equal to 20, which is not what the lower quartile represents.