Case A

é ( ß ­ )

Case B

é ( Ý ­ )

Case C

é (ß ¯ )

Case D

ê ( Ý ¯ )

Case E

ê ( ß ¯ )

Case F

ê ( Ý ­ )

Actual frequency

25.1%

(24.0 - 25.7)

12.4%

(9.4 - 13.9)

12.4%

(9.9 - 16.5)

24.8%

(24.3 - 25.6)

13.0%

(9.2 - 15.6)

12.3%

(9.9 - 15.2)

Estimated frequency

24.0%

(21.7 - 25.4)

11.8%

(10.5 - 12.8)

14.2%

(11.3 - 18.6)

24.2%

(22.2 - 26.4)

12.4%

(10.3 - 14.0)

12.4%

(10.3 - 14.0)

Normal Distribution

25.0%

12.5%

12.5%

25.0%

12.5%

12.5%