MARKS
21- 30
21-40
41-50
51-60
61-70
71-80
81-90

Frequency (f)
12
21
34
20
6
4
3

Cumulative Frequency (<cf)
12
33
67
87
93
97
100

Less than Cumulative Boudaries ( LB)
20. 5
30. 5
40.5
50.5
60.5
70.5
80.5

What is the Value of K?
A. 1
B. 2
C. 4
D. 3

What is the Result when you compute for KN/ 4?
A. 40
B.35
C. 30
D. 25

Compute For Q1 What is the Result?
A. 42.69
B.36.69
C.26.69
D. 30.69

What is the lower boundary (LB)?
a. 50.5
b.30.5
c.20.5
d. 40.5​