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2. Chartjunk - Wikipedia

   en.wikipedia.org/wiki/Chartjunk

   This chart uses a large area and much "ink" (many symbols and lines) to show only five hard-to-read numbers, 1, 2, 4, 8, and 16. Chartjunk consists of all visual elements in charts and graphs that are not necessary to comprehend the information represented on the graph, or that distract the viewer from this information. [ 1][ 2][ 3] Markings ...

3. X-bar chart - Wikipedia

   en.wikipedia.org/wiki/X-bar_chart

   X-bar chart. In industrial statistics, the X-bar chart is a type of Shewhart control chart that is used to monitor the arithmetic means of successive samples of constant size, n. This type of control chart is used for characteristics that can be measured on a continuous scale, such as weight, temperature, thickness etc. For example, one might ...

4. List of NP-complete problems - Wikipedia

   en.wikipedia.org/wiki/List_of_NP-complete_problems

   The problem for graphs is NP-complete if the edge lengths are assumed integers. The problem for points on the plane is NP-complete with the discretized Euclidean metric and rectilinear metric. The problem is known to be NP-hard with the (non-discretized) Euclidean metric. [ 3]: ND22, ND23. Vehicle routing problem.

5. Smith chart - Wikipedia

   en.wikipedia.org/wiki/Smith_chart

   The Smith chart (sometimes also called Smith diagram, Mizuhashi chart (水橋チャート), Mizuhashi–Smith chart (水橋スミスチャート), [1] [2] [3] Volpert–Smith chart (Диаграмма Вольперта—Смита) [4] [5] or Mizuhashi–Volpert–Smith chart), is a graphical calculator or nomogram designed for electrical and electronics engineers specializing in radio ...

6. Calipers - Wikipedia

   en.wikipedia.org/wiki/Calipers

   A vernier caliper clamping on an object. Caliper (s) or calliper (s) are an instrument used to measure the dimensions of an object or hole; namely, the length, width, thickness, diameter or depth of an object or hole. The word caliper comes from latin roots meaning precise pincer. [ 1][ 2][ 3]

7. np-chart - Wikipedia

   en.wikipedia.org/wiki/Np-chart

   np-chart. In statistical quality control, the np-chart is a type of control chart used to monitor the number of nonconforming units in a sample. It is an adaptation of the p-chart and used in situations where personnel find it easier to interpret process performance in terms of concrete numbers of units rather than the somewhat more abstract ...