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8th Class Mathematics Data Handling Question Bank Data Handling

  • question_answer
    The following frequency table shows the number of occupants in each flat in an apartment.
    Number of occupants Number of units (frequency)
    1 2
    2 5
    3 8
    4 14
    5 12
    6 9
    7 4
    Find the percentage of the flats with fewer than 4 occupants.

    A)  \[25%\]                              

    B)                         \[27.8%\]           

    C)                         \[42%\]                              

    D)                         \[35%\]

    Correct Answer: B

    Solution :

    Flats with fewer than 4 occupants are those with 1, 2 or 3 occupants. Number of flats with fewer than 4 occupants \[=2+5+8=15\] Total number of flats \[=2+5+8+14+12+9+4=54\] Percentage of flats with fewer than 4 occupants \[=\frac{15}{54}\times 100%\] \[=27.8%\] (3 significant figures)


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