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  2. SurveyMonkey - Wikipedia

    en.wikipedia.org/wiki/SurveyMonkey

    SurveyMonkey. SurveyMonkey Inc. (formerly Momentive Global Inc. for a short period) is an experience management company that offers cloud-based software in brand insights, market insights, product experience, employee experience, customer experience, online survey development, and a suite of paid back-end programs. [5] [6]

  3. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_code

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...

  4. Survey sampling - Wikipedia

    en.wikipedia.org/wiki/Survey_sampling

    The purpose of sampling is to reduce the cost and/or the amount of work that it would take to survey the entire target population. A survey that measures the entire target population is called a census. A sample refers to a group or section of a population from which information is to be obtained. Survey samples can be broadly divided into two ...

  5. Sample size determination - Wikipedia

    en.wikipedia.org/wiki/Sample_size_determination

    Sample size determination or estimation is the act of choosing the number of observations or replicates to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is usually determined ...

  6. Family Resources Survey - Wikipedia

    en.wikipedia.org/wiki/Family_Resources_Survey

    Beginning with a sample size of about 26,000 households, the number was reduced in 1997 to 24,000 households. After Northern Ireland was included in the sample and a 100% boost was introduced for Scotland, the sample size rose to 29,000 households in 2002 across the UK. In the most recent survey, the sample size was over 25,000 households.

  7. Reed–Solomon error correction - Wikipedia

    en.wikipedia.org/wiki/Reed–Solomon_error...

    The first element of a CIRC decoder is a relatively weak inner (32,28) Reed–Solomon code, shortened from a (255,251) code with 8-bit symbols. This code can correct up to 2 byte errors per 32-byte block. More importantly, it flags as erasures any uncorrectable blocks, i.e., blocks with more than 2 byte errors.

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