Qualitative Data - Data relating to qualities, usually recorded in words, Quantitative Data - Data relating to quantities, usually recorded with numbers, Discrete Data - Quantitative data that can only take specific values, Continuous data - Data that can take any value and could always be measured more accurately, Primary Data - Data collected specifically for an investigation, Secondary data - Existing data that has been repurposed for an investigation, Hypothesis - An unbiased statement that can be tested to prove or disprove something, Population - ALL the items that are of interest for an investigation, Sample - A portion of the population chosen to represent them, Census - The act of collecting data from every member of a population,

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