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  • Perplex
    IB Math AASL
    /
    Descriptive Statistics
    /

    Problem Bank

    [Maximum mark: 6]

    The lengths (in cm) of eight laboratory-grown seedlings are shown below.

    Seedling

    A

    B

    C

    D

    E

    F

    G

    H

    Length (cm)

    15

    22

    18

    30

    27

    25

    19

    24

    1. State whether “length” is a continuous or discrete variable.

      [1]
    2. Write down the median length of the seedlings.

      [1]
    3. Write down the range of the seedling lengths.

      [1]
    4. For these eight seedlings,

      1. find the mean length.

        [2]
      2. write down the standard deviation.

        [1]

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