The marks obtained in the previous class test out of 20 were as follows:
19 10 9 8 14 11
11 11 12 11 9 12
19 19 17 10 13 8
18 16 17 5 14 16
4 12 10 7 18 15
Make the class width 3 and the lower limit of the first class 2. With the given data complete the following table:
Intervals / Intervalle Class Midpoints / Klasmiddelpunte Frequencies / Frekwensies Cumulative frequency / Kumulatiewe frekwensies Relative Cumulative frequency / Relatiewe Kumulatiewe frekwensies Relative frequency / Relatiewe frekwensie
[ - ) G
[ - ) C E I
[ A - ) B
[ - ) H
[ - ) F J
[ - ) D
Total
What is the value of F in the table?
30
10
18
23