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  2. Data analysis - Wikipedia

    en.wikipedia.org/wiki/Data_analysis

    Download as PDF; Printable version; ... Data is collected and analyzed to answer questions, test ... "Procedures for analyzing data, techniques for interpreting the ...

  3. F-statistics - Wikipedia

    en.wikipedia.org/wiki/F-statistics

    In population genetics, F-statistics (also known as fixation indices) describe the statistically expected level of heterozygosity in a population; more specifically the expected degree of (usually) a reduction in heterozygosity when compared to Hardy–Weinberg expectation.

  4. Check sheet - Wikipedia

    en.wikipedia.org/wiki/Check_sheet

    The histogram bins in one dimension; The count or frequency of process observations in the corresponding bin in the other dimension; Lines that delineate the upper and lower specification limits; Note that the extremes in process observations must be accurately predicted in advance of constructing the check sheet.

  5. Sturges's rule - Wikipedia

    en.wikipedia.org/wiki/Sturges's_rule

    Sturges's rule [1] is a method to choose the number of bins for a histogram.Given observations, Sturges's rule suggests using ^ = + ⁡ bins in the histogram. This rule is widely employed in data analysis software including Python [2] and R, where it is the default bin selection method.

  6. Red blood cell distribution width - Wikipedia

    en.wikipedia.org/wiki/Red_blood_cell...

    RDW-SD is calculated as the width (in fL) of the RBC size distribution histogram at the 20% height level. This parameter is, therefore, not influenced by the average RBC size (mean corpuscular volume, MCV). [7] RDW-CV (expressed in %) is calculated with the following formula: RDW-CV = (1 standard deviation of RBC volume ÷ MCV) × 100%. [8]

  7. Questionnaire - Wikipedia

    en.wikipedia.org/wiki/Questionnaire

    Four types of response scales for closed-ended questions are distinguished: Dichotomous, where the respondent has two options. The dichotomous question is generally a "yes/no" close-ended question. This question is usually used in case of the need for necessary validation. It is the most natural form of a questionnaire.

  8. Dose-volume histogram - Wikipedia

    en.wikipedia.org/wiki/Dose-volume_histogram

    A dose-volume histogram (DVH) is a histogram relating radiation dose to tissue volume in radiation therapy planning. [1] DVHs are most commonly used as a plan evaluation tool and to compare doses from different plans or to structures. [ 2 ]

  9. Entropy estimation - Wikipedia

    en.wikipedia.org/wiki/Entropy_estimation

    The histogram approach uses the idea that the differential entropy of a probability distribution () for a continuous random variable , = ⁡ ()can be approximated by first approximating () with a histogram of the observations, and then finding the discrete entropy of a quantization of