math 30 lecture 6

# math 30 lecture 6 - PROBABILITY AND STATISTICS PROBABILITY...

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Unformatted text preview: PROBABILITY AND STATISTICS PROBABILITY MATH 30: PROBABILITY AND STATISTICS PROBABILITY • used in games analysis as early as 15 th century. • Nowadays, it is an indispensable tool in decision making and risk management. Examples: 1. There is a 90% chance of rain tomorrow according to a weather station. 2. The doctor says there is a 50% chance of survival for him after this operation. MATH 30: PROBABILITY AND STATISTICS TERMS: EXPERIMENT – process/ activity that yields an outcome. EVENT – an outcome or combination of from an experiment. SAMPLE SPACE – consists of all possible outcomes. MATH 30: PROBABILITY AND STATISTICS ILLUSTRATION: Consider rolling two dice and the numbers that will show up are the same. Consider taking two cards from a regular deck of 52 cards and getting two aces. MATH 30: PROBABILITY AND STATISTICS DEFINITION: The probability P(E) of an event E from a finite sample space S is ? = ? where ? is the number of favorable possibilities while () is the number of elements of the sample space. MATH 30: PROBABILITY AND STATISTICS 1. Find the probability that when a dice is rolled, it will be a prime number....
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math 30 lecture 6 - PROBABILITY AND STATISTICS PROBABILITY...

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