4.5-6 notes - P(event P(complement)=1 10 The probability of...

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Section 4.5 Probability
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Our Goals for today Solve absolute value inequalities Find theoretical probability Find experimental probability
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An Example with Some Definitions  What if we rolled a dice and wanted to find the probability of rolling an even number on a number cube. Event- Sample Space- Favorable outcome- Probability- Theoretical probability-
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Example A bag of M&Ms contains 15 red, 12 blue, 17 yellow, and 13 brown. Find the following probabilities. 1) P(blue) 2) P(Red or brown) 3) P(Green)
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Example 2 The letters DENVER BRONCOS are written on slips of paper. Find the following probabilities. 4) P (Vowel) 5)P(Consonant) 6) P(Z)
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Complements Complements are ___________________________. State the complements of the following events. 7) Rolling an even 8) Owning a dog 9) Being an only child
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Unformatted text preview: P(event)+P(complement)=1 10) The probability of being a twin is 2 out of 90. Write and solve an equation to find the P(not a twin). 11) We want to form a committee to argue to allow dogs at school. If the probably of being picked to be on the committee is 30%, what is the P(not picked)? Experimental Probability= Experimental Probability= Examples 1) A manufacturer decides to inspect 2500 bubble gum wrappers. There are 2450 wrappers that have no defects. Find the probability that a wrapper chosen at random has no defects. 2) James owns a thumbtack manufacturing plant. He produces 8076 thumbtacks a day. If 3% of his thumbtacks are defective, approximately how many defective tacks does he make each day? Homework #____ Homework: p. 214 # 1-20 & 22...
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