Question

Given below is the data showing the number of children in a family in a locality of 15 families.
Prepare the frequency table for the data 1, 3, 5, 4, 3, 2, 1, 1, 3, 2, 2, 1, 4, 2, and 1.

Answer 1

arranging the data in ascending order, we have :
1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 5
To count, we can use tally marks. We record tally marks in bunches of five, the fifth one crossing the other diagonally, i.e., `cancel(IIII)`.
Hence, we may prepare a frequency table as shown below.