Question

the class marks of distributions are 47 , 52 , 57, 62 ,67, 72 ,77 ,82, 87 ,92 ,97, 102 to determine the class size in the range of data​

Answer 1

class size = different between class marks of two consecutive classes=52-47=5

lower class limit =-1/2 of class size 47+2.5=4.9

upper class limit =+1/2 of class size 52+2.5=4.5

since, the class limit form a continuous frequency

distribution on;on the true class limit and class limit are same

Answer 2

Answer:

range= largest digit -smallest digit

Step-by-step explanation:

range=102-47=55