13. Video: Measures of Center (Mean)

Calculating the Mean

Note, at 1:13 in the number in the equation is 45 not 48

Analyzing Quantitative Data

Four Aspects for Quantitative Data

There are four main aspects to analyzing Quantitative data.

  1. Measures of Center
  2. Measures of Spread
  3. The Shape of the data.
  4. Outliers

Analyzing Categorical Data

Though not discussed in the video, analyzing categorical data has fewer parts to consider. Categorical data is analyzed usually be looking at the counts or proportion of individuals that fall into each group. For example if we were looking at the breeds of the dogs, we would care about how many dogs are of each breed, or what proportion of dogs are of each breed type.

Measures of Center

There are three measures of center:

  1. Mean
  2. Median
  3. Mode

The Mean

In this video, we focused on the calculation of the mean. The mean is often called the average or the expected value in mathematics. We calculate the mean by adding all of our values together, and dividing by the number of values in our dataset.

The remaining measures of the median and mode will be discussed in detail in the upcoming quizzes and videos.

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