Question

In a city, 45 families were surveyed for the number of domestic appliances they used. Prepare a frequency array based on their replies as recorded below.

$\begin{array}{ccccccccccccccc}1& 3& 2& 2& 2& 2& 1& 2& 1& 2& 2& 3& 3& 3& 3\\ 3& 3& 2& 3& 2& 2& 6& 1& 6& 2& 1& 5& 1& 5& 3\\ 2& 4& 2& 7& 4& 2& 4& 3& 4& 2& 0& 3& 1& 4& 3\end{array}$

Answer 1

$\begin{array}{cc}\text{No.of Domestic}& \text{No.of Households}\\ \text{Appliances}& \\ 0& 1\\ 1& 7\\ 2& 15\\ 3& 12\\ 4& 5\\ 5& 2\\ 6& 2\\ 7& 1\\ \text{Total}& 45\end{array}$