Constant {Ans: Has degree of 0}Voluntary sample {Ans: Members of the sample may choose not to respond. Similar to Non Response.}Placebo {Ans: A substance or procedure that has no effect used for comparison to the real substance or procedure}Reciprocal {Ans: The number which of multiplied by divisor gives you one (like the fraction flipped over)}Open Circle {Ans: Represents less than or greatest than on the number line}Positive {Ans: Multiplying a negative number by a negative number results in a positive}Interpolation {Ans: Making predictions *within* the range of your data. This is usually accurate.}Continuous data {Ans: Has values within a range, measured not counted, does not have gaps between data points (data is connected lines or curves).}Blind experimental study {Ans: When information of a study isn't revealed to the participants}Algebraic expression {Ans: String of terms connected by division, addition, and subtraction.}Factors {Ans: Integers that evenly divide the initial integer}The formula for all simple probabilities {Ans: (number of possible outcomes for the specific event) / (total number of possible outcomes)}P(A|B) {Ans: P(A and B) ÷ P(B)}Real numbers {Ans: Everything that can be included in a number line including