Statistics Homework 2: Video Facts

1. Identify a Representative Sample: To make a good prediction about the population from a sample, the sampling method has to be unbiased which will make it representative sample and a valid inference.

2. Make estimates About a Population Using Means: To get an accurate prediction of a population from a sample, the data from the sample should be proportional to the population when you make a conclusion about the population. Also, by using the mean of multiple samples, you get an even more accurate prediction of the population.

3. Use Proportions to Make Estimates About a Population: Cross multiplication is another way of solving a proportion. Using proportionality when making an inference about a population makes the inference more accurate, but not necessarily exact.

Statistics Homework 1: Video Facts

1. Identifying a Random Sample: Instead of conducting a census, which is difficult as you have to survey each individual of the population, you can survey a sample of the population and make a generalization of the population from the sample.

2. Generate a Representative Sample: Since we don't know what the whole population looks like, we can't handpick the people for the sample, so we have three different unbiased sampling methods: simple random sample, systematic random sample, and stratified random sample.

3. Understanding Biased Samples: Often students think that biased sampling methods are obvious and easy to avoid. Just because you've selected a part of the population that seems like a good sample population, like the basketball team, it doesn't mean that your sample is unbiased.

Seed Post

Plant Lesson Post

TreeHugger Post

According to treehugger.com and one of its articles, Trouble brewing for coffee pods as German city bans them to reduce waste, German cities are banning coffee pods to reduce waste. 

In Germany, a city called Hamburg introduced a ban on purchasing equipment for hot drinks in which proportional packaging is used, or coffee pods, which make up 1/8 of coffee's sold in Germany. According to Jan Dube, spokesman of the Hamburg Department of the Environment and Energy, proportional packs such as coffee pods create unnecessary pollution as the pods are made out of plastic and aluminum which make them very hard to recycle. Even though companies such as Nespresso, who have recycling plants who separate the foil from the plastic, Germany still believes that it isn't effective enough.

Gravity Graph

Planet Graph

Healthy Snack Recipe

Johan’s Yogurt & Muesli Parfait

Recipe:

• Greek Yogurt
• Muesli

• Fresh Strawberries
• Fresh Blueberries

1. Was my snack healthy? Justify why you say yes or no. Think about what we’ve talked about sugar and fats. 
Yes, my snack had very little to no processed sugar and all my sweetness came from my fruits. I used greek yogurt, muesli, fresh blueberries, and fresh strawberries. All my ingredients had no sugar which make it healthy and I had fruits which provide not only sweetness, but also vitamins such as vitamin C. My recipe was also low in saturated fat, very low in cholesterol and sodium, high in dietary fiber and contains high levels of vitamin B6 and C.

2. When you choose a snack do you think about how healthy/unhealthy it is? Why or why not. 
Yes, because my parents always were always big about unhealthy foods and snacks. They told me that you can't eat the snack I liked because it was either super high in sugar or was junk food. Growing up, my parents started to let me control what I ate and from then on, I controlled the amount of junk food or sweet foods I ate.

Do you think food is meant to be eaten with other people? What are some effects of eating and socializing at the same time? 
I think food should be meant to be eaten with other people because its a great time to talk and socialize. With many people on devices and computers for a majority of their time, it's harder to find a time when you can just talk, which makes eating food a good time to socialize. Some effects are that you get closer with others and that you become more aware of how you eat.

Did you enjoy preparing your food? Do you think preparing your own food affects how much you enjoy eating it? Explain
Well I really enjoyed preparing my snack. I think preparing my own food can affect how much you enjoy eating it because if it taste really good, then you feel super proud, but when it doesn't turn out like you hoped it would, there is a possibility that you wouldn't feel happy anymore. Also, if you know what the ingredients are and the steps to making it, you know what you are eating, which can help you enjoy the food more.