­¦ý°±·;œ œ›œ  !œœ"#$%&'œR ¿F<ñK*wºÄCompObj\WordDocumentóBObjectPool<ñK*wº<ñK*wºœ œœ ¿FMicrosoft Word 6.0 DocumentœNB6WWord.Document.6;œ œ ÚüÖýO˜h´ë+'„0„òþ6 < H T`h p|ô °´?Wild Cat:Applications:Microsoft Office:Microsoft Word 6:NormalDOUBLE EVENT INVESTIGATIONEducation ProgramEducation Program'@z?*wº@Äv²Ð€hO¿ eT óB·r@³@³³@³@³@³@³@ A A A A A A *A A£ALFAFAFAFAFAFAFAFA{A}A}A}A}A}A}A&ÔAXGBP£A³@FAFAFAFAFA£AFA³@³@FAFAFAFAFAFA³@FA³@FA{AÊ@Ù@³@³@³@³@FA{AFA5FA DOUBLE EVENT INVESTIGATION Introduction You will investigate the probability values for a double event. Flipping one coin is a single event, whereas flipping two coins at a time is a double event. So, double events occur when two things happen at the same time. In ³SINGLE EVENT PROBABILITY," you tallied 50 flips of one coin. In this exercise, you will flip two coins at the same time and tally your results. Your teacher will also record the totals in a chart on the board so that more accurate probabilities can be calculated. Procedure and Data One partner will toss two coins fifty times and have his/her partner record the results using tally marks in the table below. Then reverse so that the person who did the tallying will now flip the coin. Have your partner record your tosses in the table below. My Resultstwo headsa head and a tailtwo tailsMy totals for each type of tossTotal number of tosses50 Data Analysis of Your Coin tosses To determine the probability for each of the three situations above, divide the tally for each situation by the total number of tosses (write a fraction and then the decimal equivalent). That is: … Pr … Pr … Pr *Note: The sum of all the possible probabilities (as the three above) equals one. Data Analysis of your Class¹s Tosses Report your tally values to your teacher. After all students have reported their tallies, find the sum of each type of double event flip. Record the class values in the table below: Class totals for each type of tosstwo headsa head and a tailtwo tailsTotal class tosses Determine the ³class¹s² probability for rolling each of the above by the formulas below: … Pr … Pr … Pr Comparison of the Two Table Results 1. Compare your class probabilities with the probabilities you arrived at after only 50 flips of the coin. Which set of values do you think are more reliable? Why? 2. The more times we flip the coins, the closer our probability results will be to the ³theoretical² values. The theoretical values for two heads, or two tails is the same. The theoretical value for a combination of heads and tails is twice the value of a two head or two tail probability. Can you guess these theoretical values? Basic Concept of Biotechnology 3-2 Math Name Date Per  Basic Concept of Biotechnology 3-1 Math éè°ô4¶pßÝ|HHŽ(··˜EG(¸HHŽ(d'ê@ uså:ã+؃®ËË S&WordMicrosoft Word&Word H  ÝÝÝÝÝÝÝÝ2 @@$Use Word 6.0c or later to 2 Ä@$view Macintosh picture. 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