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Can variance be negative?...

Can variance be negative?

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The correct Answer is:
No
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Knowledge Check

  • If a particle has negative velocity and negative acceleration, its speed

    A
    increases
    B
    decreases
    C
    remains same
    D
    zero

  • If a particle has negative velocity and negative acceleration , its speed :

    A
    increases
    B
    decreases
    C
    remains same
    D
    zero

  • If a particle has negative velocity and negative acceleration, its speed

    A
    increases
    B
    decreases
    C
    remains same
    D
    zero

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