The mean. Sigma notation for sums. The median. The mode. The mean and the median for skewed and symmetric distributions. The standard deviation expressed in terms of the average squared deviation and in terms of the area under the distribution.

Reducing bias in experiments. Treatment groups and control groups. Factors and levels. Blind, single-blind, and double-blind experiments. Placebo effect. Direct control, randomization, and replication. Blocking and confounding. Matched pair experiments.

Paired (bivariate) data and scatterplots - Univariate data visualization - Stem-and-leaf plots - Dot plots - Brief discussion of outliers - Histograms - Choice of number of bins - Uniform, unimodal, bimodal, and multimodel distributions - Left-skewed and right-skewed distributions -

Explanatory and Response Variables - Association and Causation - Observational Studies and Experiments - Sampling Strategies - Simple Randomized Sampling, Stratified Sampling, and Cluster Sampling - Censuses. Completed Chapter 1.

We discussed the concepts of a population and a sample, together with the associated notions of parameters and statistics. We then discussed association between variables and defined dependence (positive and negative) and independence. We did some problems from the textbook.

We discussed the idea of statistics at a high level as the science of "extracting information from data." We defined observations and variables. We noted that variables may be classified as quantitative (numerical) or qualitative (categorical). Numerical data can further be subdivided into continuous and discrete, while categorical data can be further subdivided into ordered or nominal. We then described how data is usually presented as a data matrix, and we discussed the significance of the margins.

I planned to solve problems on the topic of one-sample t-distributions with Taylor. I started the lesson with an introductory video about problem-a working . After she watched the video, Taylor tried to call me back. Unfortunately, the connection was poor and we were not able to re-establish the video or audio connemctions. We were able to message through the MS Teams messaging and Taylor told me that she could work on the problems on her own. Since we could not resume the communication, I made the problems we were going to do her assignment.

We completed the last assessments in Chapter 8, the chapter 8 exam, and final exam. He is officially done!

We have been working through the concepts for his AP Statistics online course.

We have been working on the concepts for his AP Statistics online course.