Assignment 09.07 Not Always Ideal-Guided Notes

2. Flip your coin 20 times and record the number of heads you get. Repeat this process 4 more times. Record your results in the table below.

\fNow, you are going to perform a simulation to determine if the results of an experiment are reasonable. The local news station wants to interview 8 students from a school. There are 25 students on the student council. Ten of the students are from the graduating class and 15 are from the other classes. The principal has a difficult time deciding which students from the council will get interviewed, so she tells the group of students that she will put all of the names in a bowl, mix the names, then the first 8 names who are selected from the bowl will get to be interviewed. The next day, the principal returns with the names selected. It turns out that 5 of the students who get to be interviewed are in the graduating class and only 3 of the students selected are from other classes. The students who are not in the graduating class complain that this doesn't seem fair. They suspect that the principal chose the group rather than selecting at random. \fSelecting Samples Coins are usually stamped with the year and location of the mint where they were made. D represents the mint in Denver, Colorado, and a blank or P represents the mint in Philadelphia, Pennsylvania. Diego has a jar containing 36 coins. Select a sample of 5 coins by rolling your number cube once to represent the row and rolling again to find the column. For example, rolling a 3 and then a 5 would represent selecting the coin marked 2000 P. Repeat this process to collect a sample of 5 coins. 2 3 5 6 2016 D 2017 P 2016 D 2016 P 2017 D 2015 D 2016 D 2017 P 2017 P 2010 P 2008 D 2002 P 3 2017 P 1997 P 2001 D 2001 P 2000 P 2006 P 4 2011 P 2012 D 1993 P 2014 D 2014 D 2013 D 5 2015 P 2009 P 2009 D 2007 P 2004 P 2015 D 6 2005 P 2005 P 2009 D 2013 P 2012 D 2011 PRecord your results in the table provided in your guided notes question 2. To determine the sample mean year, you will add all of the years in the row and divide by 5. To find the sample proportion minted in Denver, you will take the number of coins per row minted in Denver and divide it by 5. The sample means tells you the mean(average) of the years the 5 randomly selected coins were minted. The sample proportion tells you the proportion of the 5 randomly selected coins that were minted in Denver. coin coin coin coin coin sample mean 1 sample proportion minted in 2 3 4 5 year Denver sample sample 2 sample 3