A Bag Contains 5 Coins, of Which 4 Are Fair;

question 145

Multiple Choice

A bag contains 5 coins, of which 4 are fair; the remaining coin has a head on both sides. If a coin is selected at random from the bag and tossed three times, construct a probability tree to determine the probability that heads will occur at least twice. ​

• A) Pr(at least two heads) =
• B) Pr(at least two heads) =
• C) Pr(at least two heads) =
• D) Pr(at least two heads) =
• E) Pr(at least two heads) =

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Definitions:

Recommended Dietary Allowances (RDA)

Science-based daily dietary intake levels considered sufficient to meet the nutrient requirements of nearly all (97-98%) healthy individuals in a particular age and gender group.

Supplement

A product taken orally that contains one or more ingredients (such as vitamins or amino acids) that are intended to supplement one's diet and are not considered food.

Unsaturated Fatty Acids

Fatty acids that contain one or more double bonds between carbon atoms, which can be healthier than saturated fats and found in oils from vegetables, nuts, and fish.

Monounsaturated Fats

A type of healthy fat found in various oils and nuts that can help to lower bad cholesterol levels.