Question

30) Find the class mark of 11-15
O
13
O
15
O
12
O
11​

Answer 1

Answer:

class mark is 13

Step-by-step explanation:

class nark is the mid value of the class

Thus, 11+15\2=13

Answer 2

Answer:

13 is the correct answer

Step-by-step explanation:

Class Mark = upper limit + lower limit

2

= 15+11

2

= 26

2

=13