Handling of Raw Data

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  • Q1

    Twenty people were asked about their favourite food. The following data was collected.
    Pizza, Burger, Pasta, Burger, Noodles, Burger, Pizza, Pasta, Pizza, Pasta, Noodles, Pizza, Pasta, Pizza, Burger, Pasta, Pizza, Pasta, Noodles, Pizza
    Construct a frequency distribution table for the data given above.

    Marks:2
    Answer:

    The frequency distribution table for the given data is shown below:

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  • Q2

    The number of family members of all the families in a locality is given below:
    3, 4, 2, 3, 5, 3, 3, 5, 5, 3, 4, 4, 2, 3
    What is the frequency of 3 in the above data?

    Marks:1
    Answer:

    The number of times a particular observation occurs is called its frequency. Here, 3 has occurred 6 times. Therefore, the frequency of 3 is 6.

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  • Q3

    The marks of ten students in science are given below:
    23, 42, 15, 45, 50, 35, 47, 26, 34, 49
    Which is the highest observation?

    Marks:1
    Answer:

    The highest observation is 50.

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  • Q4

    The number of cars in 12 houses is given below:
    1, 2, 3, 1, 2, 3, 3, 4, 2, 1, 2, 1
    What is the lowest frequency?

    Marks:1
    Answer:

    The number of times a particular observation occurs is called its frequency.

    Here, 1 has occurred 4 times, 2 has occurred 4 times, 3 has occurred 3 times and 4 has occurred 1 time.

    So, the lowest frequency is 1.

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  • Q5

    The following data shows the number of cars sold in the month of October.

    Cars

    Number of Cars Sold

    Alto

    12

    Zen

    8

    Swift

    6

    Honda City

    10


    What is the frequency of Honda City?

    Marks:1
    Answer:

    The frequency of Honda City is 10.

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