Podcast
Questions and Answers
According to the table, what is the number of students in the range 6.0 - 6.6?
According to the table, what is the number of students in the range 6.0 - 6.6?
- 1
- 7 (correct)
- 5
- 4
According to the table, what is the point midpoint (Pm) for the range 7.8 - 8.4?
According to the table, what is the point midpoint (Pm) for the range 7.8 - 8.4?
- 6.3
- 6.9
- 8.1 (correct)
- 7.5
According to the table, what is the total value of $Pm \times f$?
According to the table, what is the total value of $Pm \times f$?
- 46.8
- 8.7
- 172.5 (correct)
- 23
Based on the table, calculate the arithmetic mean of the grades for the group of students.
Based on the table, calculate the arithmetic mean of the grades for the group of students.
Flashcards
Table of Grades
Table of Grades
A table showing the distribution of grades among students.
Grades Interval
Grades Interval
The range within which student grades fall (e.g., 6.0 - 6.6).
Number of Students
Number of Students
The count of students whose grades fall within a specific interval.
Midpoint (Pm)
Midpoint (Pm)
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Pm × f
Pm × f
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Sum of Pm × f
Sum of Pm × f
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Total Students
Total Students
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Arithmetic Mean of Grades
Arithmetic Mean of Grades
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Preamble
Preamble
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Postamble
Postamble
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Study Notes
- The grades of a group of students are presented in a table.
- The question is what is the arithmetic mean of the grades of the group of students?
Califications Table
- Califications are on the left column
- Quantity of students in the second: f
- Point average in the third column: (Pm)
- The multiplication of the last 2 columns are shown in the last column: Pm * f
- Grades between 6.0 - 6.6: 7 students, 6.3 average grade, 44.1 is the product
- Grades between 6.6 - 7.2: 4 students, 6.9 average grade, 27.6 is the product
- Grades between 7.2 - 7.8: 5 students, 7.5 average grade, 37.5 is the product
- Grades between 7.8 - 8.4: 1 students, 8.1 average grade, 8.1 is the product
- Grades between 8.4 - 9.0: 1 students, 8.7 average grade, 8.7 is the product
- Grades between 9.0 - 9.6: 5 students, 9.3 average grade, 46.5 is the product
- Totals for each column, are displayed at the end of each column, 23, 46.8, 172.5
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Description
Calculate the arithmetic mean of a group of students' grades based on a provided table. The table includes grade ranges, frequency of students, point average, and the product of frequency and point average. Use the totals to find the mean.
