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JEE Main & Advanced Mathematics Statistics Question Bank Numerical Value Type Questions - Statistics

  • question_answer
    5 students of a class have an average height \[150\text{ }cm\] and variance \[18\text{ }c{{m}^{2}}\]. A new student, whose height is \[156\text{ }cm,\] joined them. Then variance (in \[c{{m}^{2}}\]) of the height of these six students is

    Answer:

    20


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