Question

a graph shows the cumulative frequency curve for the marks of
60 students in an examination.

From the graph
the median mark = 47
the mark at the lower quartile =30 at the upper quartile = 63
the interquartile range = 33

find:
i) the pass mark if two-thirds of the students passed
ii) the number of students achieving less than 40 marks.

PLEASE REPLY ​

Answer 1

Answer:

a graph shows the cumulative frequency curve for the marks of

60 students in an examination.

From the graph

the median mark = 47

the mark at the lower quartile =30 at the upper quartile = 63

the interquartile range = 33

find:

i) the pass mark if two-thirds of the students passed

ii) the number of students achieving less than 40 marks.

PLEASE REPLY