Question

(b)Write the upper limit, lower limit and class mark

of the class interval 15-30​

Answer 1

Answer:

upper limit = 30

lower limit = 15

class interval = upper limit - lower limit

=30-15

=15

Step-by-step explanation:

hope it helps...

Answer 2

Step-by-step explanation:

Answer is 15

Given: Upper limit=30

Lower limit=15

Class interval=Upper limit-Lower limit

30-15

=15

Hope it helps....