EXAMPLE 6 Calculating expected frequencies using the shortcut method

Calculate the expected frequencies from Table 7 using the shortcut method.

Solution

Table 8 contains the expected frequencies calculated using the shortcut method.

Table 11.23: Table 8 Expected frequencies using the shortcut method
Age group
Response Gen Nexter (18–25) 26+ Total
Very happy 510
Pretty happy 813
Not too happy 177
Total 600 900 1500

NOW YOU CAN DO

Exercises 5–10.