Denise Milani Breast Expanding

La Lotteria

This second meeting saw us struggling with a problem that we faced and solved in small groups. We had to help a "mysterious" mother, who had to prepare a lottery for the parish, linking premiums to more extractions of the numbers 0 through 9, to answer this question:

" Which number from 0 to 9 are most likely to come out , so that Mom can associate a prize of lesser value? "
To do this we calculated the theoretical probability random output of each number and then the experimental probability, making each group 30 draws. We wanted to use the cards we had prepared last time, but we opted for the 0 to 9 cards of the game "UNO", as ours were very crude ....
We collected data in tables of absolute and relative frequencies and compared our results ... we realized that not all numbers had the same frequency in different groups, nor their release was close to the theoretical probability .. .. If, however, putting all the results together, that is, if we consider the results already 120 extractions were more comparable, although there was still a decent variation of "exit" of the different numbers. The data we have then represented by a bar chart is printed on both the LIM through software "Graphic" Site Mathsisfun ..... Then, we had a game at LIM "Catch", we prepared the Prof inspired by the game "Chase me" Site Mathsonline , and even here we could speculate and comment on the fact that the theoretical probability expected very often does not coincide with the real one .... The sound of the bell made us stop .... until Wednesday with a new lottery .....