S.D. Admin. R. 48:02:08:02

Current through Register Vol. 50, page 159, June 17, 2024

Section 48:02:08:02 - Software requirements for randomness testing

Each video lottery machine must have a random number generator that will determine the occurrence of a specific card, a specific number, or a specific symbol to be displayed on the video screen. A selection process will be considered random if it meets the following requirements:

(1) Each card position, each number position, or each symbol position satisfies the 99 percent confidence limit using the standard chi-squared analysis. "Chi-squared analysis" is the sum of the squares of the difference between the expected result and the observed result. "Card position" means the first card dealt, second card dealt in sequential order. "Number position" means first number drawn, second number drawn in sequential order, up to the 20th number drawn "Symbol position" means the first symbol drawn, second symbol drawn in sequential order, up to the last symbol drawn;

(2) Each card, number, or symbol position must not produce a significant statistic with regard to producing patterns of occurrences. Each card, number, or symbol position will be considered random if it meets the 99 percent confidence level with regard to the "runs test" or any similar pattern testing statistic. The "runs test" is a mathematical statistic that determines the existence of recurring patterns within a set of data;

(3) Each card, number, or symbol position is independently chosen without regard to any other card, number, or symbol drawn within that game play. This test is the "correlation test." Each pair of card, number, or symbol positions is considered random if they meet the 99 percent confidence level using standard correlation analysis; and

(4) Each card, number, or symbol position is independently chosen without reference to the same card, number, or symbol position in the previous game. This test is the "serial correlation test." Each card, number, or symbol position is considered random if it meets the 99 percent confidence level using standard serial correlation analysis.

S.D. Admin. R. 48:02:08:02

16 SDR 27, effective 8/18/1989; 37 SDR 215, effective 5/31/2011.

General Authority: SDCL 42-7A-21(10).

Law Implemented: SDCL 42-7A-21, 42-7A-37.