Chapter 1.)
In our study Olivia and I asked people “What is your favorite Disney Princess movie?” We surveyed the whole class population, they had to pick from Frozen, Moana, Tangled, Mulan, Snow White, Aladdin, and other. We decided to pick from the whole class instead of only taking a sample because we would get a better variety of results. The results were qualitative because because it was not a survey on numbers it was on names We did not choose to do a simple random sample, we used a whole population to avoid bias, error, and under coverage. It is important to stay away from these things to have a better and more accurate survey. Avoiding having bias makes it less likely to have error. Chapter 2.) Dylan and I decided to research the fifty best batting averages in the Major League Baseball History. We collected our date from https://www.baseball-reference.com/leaders/batting_avg_career.shtml. This website included the player's rank, The players year and there age, There batting average, and if they bat left or right handed. The list included the top 1000 players but we only used the top fifty in the data set Chapter 3.) For our project Nicholas and I decided to use the fifty best highest home run hitters of the 2017 regular season. We got all of our information from http://www.espn.com/mlb/homeruns/_/type/2. We used google sheets to calculate most of our data but also used a calculator. We found a whole bunch of different calculations from our data, include graphs and simple equations like mean median mode and range. Chapter 4.) Does the amount of pop consumed relate to the amount of cavities a person has? Jolie and I have found that the amount of pop consumed has a very weak negative correlation to how many cavities a person has. We surveyed 50 people from the senior and junior classes at Fowler High School. The negative result was surprising at first, but after a thinking about it, a negative correlation was not so surprising. Pop contains a lot of sugar, but sugar consumption is not the only factor that contributes to the amount of cavities that a person has. Chapter 5.) In our statistics project Victor and I had been given two coins that a flipped one after another. If we begin with the first coin and the face heads this has a 50% chance of happening since there are only two faces to a coin. We used various formulas to find the different probabilities of the specific events that comes with flipping a coin. Chapter 6.) We learned the different variables that may affect the outcome of the experiment. We learned how a histogram can be used to visually show the different probabilities and outcomes of an event. We learned how to read and use a distribution table to learn the probability of an outcome and how to use calculator to determine the it also. Chapter 7.) We collected information on how many pairs of jeans a person owns. We surveyed all the stats students and those in the library to collect our data. The only problem we had was that some people owned different colors of jeans, so we limited it to blue jeans. We used a simple random sample to find fifty people to ask. We were unsure of what information we were going to receive and how it would look when it was graphed and what shape it would be. Chapter 8.) IQ stands for Intelligence Quotient, there is testing done to figure out the score one may receive. Given a random sample size of sixty adults for our data, we got the sample mean, also more commonly known as the average, of 115 (114.983). This showed that the average person in the group of adults has an Intelligent Quotient of about 115 (114.983 to be exact). This was calculated by taking all the imputed IQs from the group adding them all together and dividing the total by sixty. Chapter 9.) We randomly surveyed thirty students at Fowler High school and asked them the average number of minutes they spend on Facebook on a daily. Time spent on Facebook includes posting, liking, commenting, scrolling, etc. As we asked people, we recorded our data in google sheets. |