1) The data in diagram 2 shows the marks for an English
Languange monthly test for 42 pupils
Name: ________________________________
Exercise
1) The data in Diagram 1 shows the marks for an English
Languange monthly test for 42 pupils.
512045312640302532374121363846382837392339333542293831234234263543282225473148443454
Diagram 1(a) Using data in Diagram 1 and a class interval of 5
marks, complete Table 1.
MarksMidpointFrequency
20 24
25 29
Table 1(b) Based on your table in (a),(i) state the modal
class,(ii) calculate the mean mark for the English Language monthly
test and give your answer correct to 2 decimal places.(c) By using
a scale of 2 cm to 5 marks on the horizontal axis and 2 cm to 1
pupil on the vertical axis, draw a histogram for the data.
2) The data in Diagram 2 shows the donation, in RM, collected by
40 pupils.
49263839414545432230333945433931272432404340383534342534462335374037482547302928
Diagram 2
(a) Based on the Diagram 2 and by using a class interval of 5,
complete Table 2.Class IntervalMidpointFrequency
21-25
26-30
Table 2(b) Based on Table 2, calculate the estimated mean of
donation collected by a pupil.(c) By using a scale of 2 cm to RM5
on the horizontal axis and 2 cm to 1 pupil on the vertical axis,
draw a histogram for the data.(d) Based on the frequency polygon in
(c), state one piece of information about the donations.
3) The data in Diagram 3 shows the marks obtained by a group of
students in a Trial Examination.
4856425569585451
5048655162544746
4639494142566062
3545545561574450
(a)Based on the data in Diagram 3 and by using a class interval
of 5 marks, complete Table 3 in the answer space.
MarksFrequencyMidpoint
35 - 39
Table 3
(b) Based on Table 2, calculate the estimated mean of the mark
obtained by a student.(c) By using the scale of 2 cm to 5 marks on
the horizontal axis and the scale of 2 cm to 1 students on the
vertical axis, draw a histogram for the data.
