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HAPPY PI DAY WEDNESDAY, MARCH 14 TH 1.Find the area of a circle who’s diameter is 45 cm 2. If a triangles area is 84 and it’s height is 6, what is it’s base?

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Grade Check “Our lives are not determined by what happens to us but by how we react to what happens, not by what life brings to us, but by the attitude we bring to life. A positive attitude causes a chain reaction of positive thoughts, events, and outcomes. It is a catalyst, a spark that creates extraordinary results.” You all are doing so Great!!!!

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Joke of the Day Basketball Week Why do basketball players love Oreos? Because they can DUNK them

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Interesting Tidbits About Pi Day: o It is Albert Einstein's birthday o On March 12, 2009, the US Representatives recognized 3.14 as National Pi Day o On March 14, 2015 at 9:26:53, the date and time will be exactly the first 9 numbers of Pi- 3.141592653

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http://www.youtube.com/watch? v=hJJJmQojcLM PI SONG

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Can you recite all the digits? You have 5 minutes to try to memorize as many digits of pi as you can!!! Winner will receive this bag of candy

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Pi and Candy Take each piece of candy and measure it’s circumference and diameter using the piece of string. Please measure in centimeters

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Candy CircumferenceDiameter Circumference ÷ diameter

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Homework Answers

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What is the outcome in each experiment?

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Theoretical Probability the ratio of the number of equally likely outcomes in an event to the _____________number of possible outcomes

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An experiment consists of rolling a number cube. Find the theoretical probability of the following rolling a number less than 3 There are 2 numbers less three.

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In flipping a coin, what would P(tails) Mean?

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IMPORTANT Vocabulary Word Trial: In probability a single occurrence or observation in an experiment. Ex: When rolling a number cube each roll.

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The ratio of the number of times the event occurs to the number of trials. The more trials performed, the more accurate the estimate will be. It’s what actually happens vs what is supposed to happen!

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OutcomeFrequency Green15 Orange10 Purple8 Pink7 An experiment consists of spinning a spinner. Use the results in the table to find the experimental probability of the event. Spinner lands on orange

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#2 Experimental Probability An experiment consists of spinning a spinner 8 times. The spinner lands on red 4 times, yellow 3 times, and green once. Find the experimental probability of each event. 1. The spinner lands on red. 2. The spinner does not land on green. 3. The spinner lands on yellow.

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When you toss a coin, there are two possible outcomes, heads or tails. The table below shows the theoretical probabilities and experimental results of tossing a coin 10 times.

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What could you do to get the experimental probability closer to the theoretical probability?

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Discussion question What number of trials would get be closer to the theoretical probability? a.100 trials b.1000 trials c.10000 trials d.100000 trials

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PREDICTIONS

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Rule Take probability and multiply it by the number of trials

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#1 If I know that I have a 1/6 chance of rolling a 1, how many times would I expect to roll a 1 if I rolled the number cube 90 times?

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Answer Multiply the probability by the number of times you do the experiment

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#2 If you roll a dice 20 times, how many times do you expect to roll an even number?

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Answer Even: 3/6=1/2 Multiply by number of trials

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DICE LAB

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