Question

write a c program to declare 1d array and prints its elements​

Answer 1

Explanation:

Find the missing frequencies f1 and f2 if the mean of 50 observations given below

is 38.2.

Class interval Frequency

0 – 10 4

10 - 20 4

20 – 30 f1

30 - 40 10

40 - 50 f2

50 - 60 8

60 – 70 5