A sample of 100 people is classified by gender (male/female)and by whether or not they are registered voters.The sample consists of 80 females and 20 males,and has a total of 60 registered voters.If these data were used for a chi-square test for independence,what is the expected frequency for males who are registered voters?
A)12
B)20
C)40
D)60

Question

A sample of 100 people is classified by gender (male/female)and by whether or not they are registered voters.The sample consists of 80 females and 20 males,and has a total of 60 registered voters.If these data were used for a chi-square test for independence,what is the expected frequency for males who are registered voters?​
A)​12
B)​20
C)​40
D)​60

Quizplus · Accepted Answer

The expected frequency for males who are registered voters can be calculated using the formula for expected frequency in a contingency table: (Row total * Column total) / Grand total. Here, the row total for males is 20, the column total for registered voters is 60, and the grand total is 100. So, the expected frequency for males who are registered voters = (20 * 60) / 100 = 12.

A Sample of 100 People Is Classified by Gender (Male/female)and