each question using 50 words. week 5 class notes: When we flip a coin a certain number of times and get results, what we're doing is SAMPLING We're sampling from this distribution of possible results of coin flips SAMPLE = our set of observations SAMPLING = taking a sample, making some number of observations SAMPLE SIZE = the number of observations in our sample (often we call this N) When we flip a coin 100 times and see how many heads we get, we're taking a sample of 100 observations. Our sample size = 100. POPULATION = the hypothetical set of all possible observations Population doesn't necessarily mean people! The population is what you sample from. Example 1 - asking 25 people their ages as they enter a building Observation: one person's age Sample: set of 25 ages that we collected Sample size: 25 Population: all of the ages of people who ever enter this building Example 2 - interested in the breeds of dogs that walk on my street, so I'm going to watch out my window and write down the breeds of the first 10 dogs I see Observation: one breed / one dog Sample: the 10 dogs we see Sample size: 10 Population: all the (breeds of) dogs that walk on my street "Normal distribution" can refer to 2 different things: A unimodal symmetrical distribution A precise mathematical object question; 1. Is there anything you enjoyed learning this week? 2. Is there anything that came up this week that you're curious to learn more about? 3.Is there anything you feel stuck