basic math vocabulary

Term Definition addend numbers you add together. difference answer to a subtraction sentence. sum answer to an addition sentence. how many more subtraction. how altogether add. how many in all add. doubles facts adding addends that the same 2 + 2 near doubles adding an addend to a second addend that is one more in …

Violations of Classic Assumptions

Question Answer Which classical assumption(s) does an Omitted Variable violate? Violates Classical Assumptions I and III What are the consequences of an Omitted Variable? 1) Estimated coefficient doesn’t equal actual coefficient. 2) Bias is forced onto another coefficient, causing the estimated value of the coefficient to change. 3) Increases by decreasing variance. What factors may …

Tests

Question Answer What is the basic idea of GLS? 1) Find rho by regressing lagged residuals against original residuals 2) Correct for serial correlation by subtracting lagged variables from original variables (and subtract rho from one on intercept) to remove serial correlation out of the equation. What are the 3 requirements to use DW test? …

create a stuck for study purpose

Question Answer perpendicular from centre to chord the line drawn from the centre of a circle perpendicular to a chord bisects the chord line from the centre to mid-point chord the line drawn from the centre of the circle to the midpoint of a chord is perpendicular to the chord perpendicular bisector of chord the …

Probability Distributions

Term Definition Probability Distribution provides probabilities for the possible values of a random variable; summarized by measures of the center (mean) and the spread (standard deviation) Random Variable a numerical measurement of the outcome of a random event Expected Value the mean of a probability distribution for a discrete random variable Normal Distribution the probability …

Êàðòî÷êè äëÿ ïðîâåðêè çíàíèé

Question Answer ×òî íàçûâàåòñÿ êîðíåì óðàâíåíèÿ? Êîðíåì óðàâíåíèÿ íàçûâàåòñÿ çíà÷åíèå ïåðåìåííîé, ïðè êîòîðîì óðàâíåíèå îáðàùàåòñÿ â âåðíîå ðàâåíñòâî. ßâëÿåòñÿ ëè ÷èñëî 2 êîðíåì óðàâíåíèÿ 5x-4=7? Íåò ×òî çíà÷èò ðåøèòü óðàâíåíèå? Ðåøèòü óðàâíåíèå – çíà÷èò íàéòè âñå åãî êîðíè èëè äîêàçàòü, ÷òî êîðíåé íåò. Êàêèå óðàâíåíèÿ íàçûâàþòñÿ ðàâíîñèëüíûìè? Äâà óðàâíåíèÿ íàçûâàþòñÿ ðàâíîñèëüíûìè, åñëè ìíîæåñòâà èõ êîðíåé …

Review of integers, equations, and inequalities

Term Definition absolute value The distance a number is from zero on a number line. integer The set of numbers containing zero, the natural numbers, and all of the negatives of the natural numbers. inverse operation The operation that reverses the effect of another operation. Example: add and subtract or multiply and divide. evaluate To …