Chapter 11, Problem 8PT

To determine

To find: The expected count.

Answer to Problem 8PT

The degree of freedom is 2.

Explanation of Solution

Given:

The table is:

	Leukaemia	Lymphoma	Other cancers
HCC	52	10	17
LCC	84	21	31

Formula used:

The formula to compute the degree of freedom is:

  $\text{Expected count = }\frac{\text{Row total }\times \text{ Coloumn total}}{\text{Table total}}$

Calculation:

Row total is 79.

Column total is 31.

Table total is 215.

The expected count is calculated as:

  $\begin{array}{c}\text{Expected count = }\frac{\text{Row total }\times \text{ Coloumn total}}{\text{Table total}}\\ =\frac{79\times 31}{215}\end{array}$

The correct option is (a).