Probability Test – Review Sheet Answers

Math 2: Algebra 2, Geometry and StatisticsMs. Sheppard-Brick 617.596.4133http://lps.lexingtonma.org/Page/2434Name:Date:Probability Test – Review Sheet Answers

Math 2: Algebra 2, Geometry and StatisticsMs. Sheppard-Brick 617.596.4133http://lps.lexingtonma.org/Page/2434Name:Date:Probability ConceptsYou need to know how to:• Calculate probabilities of random events. Rolling a number cube, flipping a coin, spinning aspinner etc.• Calculate probabilities of conditional events (spinner, dice, etc. or from data table). P(A|B)• Calculate probabilities of compound events (both independent and dependent cases) P(A and B)• Write out a sample space and determine the total number of outcomes for given situation• Determine if two events are independent à is it a situation that you can explain, i.e. there is noreplacement so the first event necessarily affects the total left so they must be dependent, or àyou need to calculate and show that P(A) = P(A|B) or P(B) = P(B|A). This is needed when youare working with data tables.• Complete a data table given that two events are independent.• Find the total number of arrangements of things (both binary like flipping a coin and non-binarylike people sitting at a table or letters in a word)• Generate and use Pascal’s triangle to assist you solving problems.• Find the expected value for a given situation.• Determine if outcomes are equally likely.