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    Question

    Which of the following is/are correct regarding

    correlation?
    A It is a relationship between two or more variables. Correct Answer Incorrect Answer
    B Change in one variable affects other variable Correct Answer Incorrect Answer
    C It always lies between –1 to +1 Correct Answer Incorrect Answer
    D All the above statements are correct Correct Answer Incorrect Answer

    Solution

    Relationship between two or more variables called correlation. Where the change in one variable affects a change in other variables. It is a two-way relationship; it is independent of units of the variables. It always lies between –1 to +1.

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