Question

Observe the frequency distribution table given below. Answer the following questions based
the table
1 - 20
21 - 50
51 - 70
71 - 80
81 - 100
frequency
6
12
30
14
7

(a) What is the range of the data?
(b) What is the class size of the second class interval?
(c) What is the frequency of the class interval with size 10?​
pls help​

Answer 1

Answer:

51 to 70

idk

may be 3

Step-by-step explanation:

try seeing formula