Question

class mark of a class in a distribution are 6, 10, 14, 18, 22, 26, 30 find the class size and the lower limit of the second class ​

Answer 1

Answer:

We observe that 10 - 6 = 4, 14 - 10 = 4 .....& so one.

 

Hence, class size is 4.

 

Step-by-step explanation:

Now, the difference between the values of two consecutive class marks is 4, therefore we subract 4/2 = 2 from each class mark to get the lower limit of the corresponding class interval and add 5 to each class mark to get the upper limit.

 

Thus, the class intervals are

4 - 8

8 - 12

12 - 16

16 - 20

20 - 24

24 - 28

28 - 32