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Computing & AI Class 8

Data & Patterns III: Running a Small Survey

Run a small survey: ask, collect, find the mean, pick a chart.

8 lessons · ~46 min total

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Lessons in this topic

  1. 0 Start here Run your own small survey, from the question to an honest sentence. · 3 min You are here
  2. 1 A good question gets answers you can compare A good survey question gets answers you can put side by side and count. · 6 min
  3. 2 The same steps for every person A survey method is one fixed list of steps, run the same way for every person. · 6 min
  4. 3 The mean: add them up, share equally The mean is the sum divided by the count: what each value would be if the total were shared equally. · 7 min
  5. 4 Draw a chart to compare groups A bar chart helps when a question compares groups. A question about one row is answered by the table. · 6 min
  6. 5 Say only what the rows can show A conclusion is only as wide as the rows behind it. "The data shows" and "the data hints" are different claims. · 7 min
  7. 6 The big picture The whole survey on one screen. · 3 min
  8. 7 Track quiz A cheat sheet, then fifteen quick questions on each step of the survey. · 8 min