following is the distribution of marks of 50 students
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5
1)10
2)40
3)class mark=20+30/2=50/2=25
class mark=25
4)class mark=10+20/2=30/2=15
class mark =15
5)10
2)40
3)class mark=20+30/2=50/2=25
class mark=25
4)class mark=10+20/2=30/2=15
class mark =15
5)10
saket123456789:
4) is wrong
its right
Answered by
4
Step-by-step explanation:
5. class width = upper class boundary ÷2 - lower class boundary ÷ 2
20+20/2 = 20
30+30/2 30
30-20= 10
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