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Basic Terms of Probability. Objectives. Determine the probability of a given event . Determine the odds of a given event. Use a Punnet square to determine probability. . Vocabulary. experiment sample space - the set S of all possible outcomes of an experiment

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## Basic Terms of Probability

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**Objectives**• Determine the probability of a given event . • Determine the odds of a given event. • Use a Punnet square to determine probability.**Vocabulary**• experiment • sample space - the set S of all possible outcomes of an experiment • event – any subset E of the sample space S • probability – success divided by total • odds – success to failures**A jar on your desk contains twelve black, eight red, ten**yellow, and five green jellybeans. You pick a jellybean without looking. What is the probability that the jellybean is green?**A jar on your desk contains twelve black, eight red, ten**yellow, and five green jellybeans. You pick a jellybean without looking. What is the probability that the jellybean is not yellow?**A jar on your desk contains twelve black, eight red, ten**yellow, and five green jellybeans. You pick a jellybean without looking. What are the odds in favor of picking a black jellybean?**A card is drawn from a well-shuffled deck of 52 cards.**What is the probability that the card is a heart?**A card is drawn from a well-shuffled deck of 52 cards.**What are the odds of drawing a heart?**A card is drawn from a well-shuffled deck of 52 cards.**What is the probability that the card is below a 9 (ace high)?**A card is drawn from a well-shuffled deck of 52 cards.**What are the odds of a card below a 9 (ace high)?**A family has three children. Using b to stand for boy and**g to stand for girl, and using ordered triples such as(bbg) give: the sample space**A family has three children. Using b to stand for boy and**g to stand for girl, and using ordered triples such as(b, b, g) give: the event E that the family has exactly two daughters**A family has three children. Using b to stand for boy and**g to stand for girl, and using ordered triples such as(b, b, g) give: the event F that the family has at least two daughters**A family has three children. Using b to stand for boy and**g to stand for girl, and using ordered triples such as(b, b, g) give: the event G that the family has three daughters**Vocabulary**• dominant • recessive • Punnett square • codominant**Mendel found that snapdragons have no color dominance; a**snapdragon with one red gene and one white gene will have pink flowers. If a pure-red snapdragon is crossed with a pure-white snapdragon, find the probability of the following. • a red offspring • a white offspring • a pink offspring**If carrier-detection tests show that two prospective parents**have sickle cell trait (and are therefore carriers), find the probability of each of the following • their child would have sickle cell anemia. • their child would have sickle cell trait. • their child would be healthy (free of symptoms).**Tay-Sachs disease is a recessive disease. If**carrier-detection tests show that one prospective parent is a carrier of Tay-Sachs and the other has no Tay-Sachs gene, find the probability of each of the following. • their child would have the disease. • their child would be a carrier. • their child would be healthy (free of symptoms)

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