- The difference between data and statistics is that data is what you collect and statistics is what you do with it. Example : We surveyed 50 people to see what their grades were on their last stats test. We found 30% of the students received A's while 44% received B's .
- The difference between Population and sample is that your sample comes from the population. The population is the entire group while the sample is a portion of the group. Example: you survey your stats class , the class would be the sample and the population is all of the MHS students.
- The difference between parameter and statistic is a parameter describes a population while a statistic describes a sample. For example if the population was 20,000 and only 150 were selected as the sample then the population size of 20,000 would be the parameter and the sample size of 150 would be the statistic .
- The difference between descriptive statistics and inferential statistics is that when you use descriptive statistics (charts, averages, graphs, etc) to draw conclusions you are making an inferential statistics. An example of this would be if you had a graph and it showed 50 people spent more than 1,000 dollars in a month on television .
- The difference between qualitative data an quantitative date is that quantitative consists of numerical measurements and qualitative data doesn't consists of numerical data rather it consists of labels and attributes. For example the price of an apple would be quantitative data. The number on my soccer jersey would be qualitative.
- The definition of census is when you collect data from an entire population.
Tuesday, August 28, 2012
Sunday, August 26, 2012
E: The activity I completed over the last two days was about surviving a plane crash in Canada and ranking the items for their importance to survive. We were given 11 items that were essential to surviving in the wilderness. First we ranked the items individually and then we compared with a group and re ranked them as a group. After that we got the experts rankings of the items and then found the absolute value difference between the experts rankings and our individual rankings. Following that we found the mean(average) for our absolute value difference and wrote our average on the board by gender. Last we found out who the ultimate survivor would be and we found that by seeing who had the lowest average.
F: My group would have survivied very well based on the rankings we did for the supplies. When i calcualted the absolute value difference of my groups rankings and the experts rankings the highest difference we had was five. For six of the items our absolute value difference was one or less. The mean for our absolute value difference was 2.27. Our group had the right mind set with almost all of the items except for the crisco because we had that as number nine and it was ranked number four by the expert. Overall my group would have survived very well if we were stuck in this situation.
G: If i was stranded in Canada I wouldn't have survived very well. My mean for the absolute value difference was four. For a lot of the items I had them completely wrong. The lighter I had as number 11 but the expert ranked it as number one. Another item I was very off of for my ranking was the pistol I had that as number two but the expert had it as number nine. This activity showed me how bad with nature and the outdoors I really am because according to this activity I wouldn't have survived very long at all.
F: My group would have survivied very well based on the rankings we did for the supplies. When i calcualted the absolute value difference of my groups rankings and the experts rankings the highest difference we had was five. For six of the items our absolute value difference was one or less. The mean for our absolute value difference was 2.27. Our group had the right mind set with almost all of the items except for the crisco because we had that as number nine and it was ranked number four by the expert. Overall my group would have survived very well if we were stuck in this situation.
G: If i was stranded in Canada I wouldn't have survived very well. My mean for the absolute value difference was four. For a lot of the items I had them completely wrong. The lighter I had as number 11 but the expert ranked it as number one. Another item I was very off of for my ranking was the pistol I had that as number two but the expert had it as number nine. This activity showed me how bad with nature and the outdoors I really am because according to this activity I wouldn't have survived very long at all.
Subscribe to:
Posts (Atom)