2 If the following chart represented data for a test for ind

2 )If the following chart represented data for a test for independence, find the expected value for the cell CK.

Solution

As the sum of row K = 42,

and

Sum of column C = 17,

and the sum of all entries is 88, then

E(CK) = (sum of row K)*(sum of column C) / (total sum)

= 42*17/88

= 8.113636364 [ANSWER]