Look at the following table below. ClassintervalClassmark0−5−−5−10−−10−1515−20
Fill in the blanks with the class marks of the corresponding class intervals.
A
0, 5
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
2.5, 7.5
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
3, 8
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
5, 10
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is B 2.5, 7.5 Class mark for a class interval is given by =Upper class limit + lower class limit2 For 1st class interval, upper limit is 5 and lower is 0. Thus, class mark will be 2.5. For 2nd class interval, upper limit is 10 and lower limit is 5. Thus, class mark will be 7.5.