1. the frequency distribution of the grade of 69 students on a final examination of a fresh students english course is given by th e folowing table.

grade number of students
50-60 9
60-69 18
70-79 24
80-89 12
90-99 6
if possible find the percentage of students who got
a. more than 90
b.less than 69
c.80 or more
d.exactly 90
e.any where between 70 and 89 inclusive

Question

1. the frequency distribution of the grade  of 69 students on a final examination of a fresh students  english course  is given by th e folowing table.

grade                   number of students
50-60                   9        
60-69                   18
70-79                    24
80-89                    12
90-99                     6
if possible find the percentage  of students who got
a. more than 90
b.less than 69
c.80 or more
d.exactly 90
e.any where between 70 and 89 inclusive

anonymous · Answer

a. not possible.
b. not possible.
c. 18/69 = 26.1%
d. not possible
e. 36/69 = 52.2%