Question

class interval (height) of the class 11-20 is​

Answer 1

Answer:

10

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

See

First we have to add the equation

Class interval

11-20

Now add it

11+20

=31

Now we have to divide it by 2

31/2

=15.5

Therefore the class interval is =15.5