Filling in the blanks in this frequency distribution table, the percentage ('%') for 10th grade is ______; the cumulative percent ('Cum %') associated with 10th grade is ______.
A) 15.8%; 78.9%
B) 18.4%; 78.9%
C) 34.2%; 94.7%
D) 78.9%; 18.4%

Question

Filling in the blanks in this frequency distribution table, the percentage ('%') for 10th grade is ______; the cumulative percent ('Cum %') associated with 10th grade is ______. 
A) 15.8%; 78.9% 
B) 18.4%; 78.9% 
C) 34.2%; 94.7% 
D) 78.9%; 18.4%

Quizplus · Accepted Answer

To find the percentage for 10th grade, we add the frequency for 10th grade and divide by the total number of students, then multiply by 100:
(46/250)*100 = 18.4%
To find the cumulative percent associated with 10th grade, we add up the percentages for 9th and 10th grade:
15.8% + 18.4% = 34.2%
Therefore, the best choice is B because it correctly calculates both the percentage for 10th grade and the cumulative percent associated with 10th grade.

Filling in the Blanks in This Frequency Distribution Table, the Percentage