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Thread: CS601 Data Communication Assignment No 1 Solution Fall 1st November 2012

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    Icon51 CS601 Data Communication Assignment No 1 Solution Fall 1st November 2012

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    CS601 Data Communication Assignment No 1 Solution Fall 1st November 2012





    Question 1: Marks: 5+2=7

    a) Following are the heights (in centimeters) of 45 female high school students. Prepare a frequency distribution of the data where the class width is 5, the number of classes is 6 and the smallest observation is 148. Also obtain the relative frequency and relative cumulative frequency.

    170, 151, 154, 160, 158, 154, 171, 156, 160, 157, 160, 157, 148, 165, 158, 159, 155, 151, 152, 161, 156, 164, 156, 163, 174, 153, 170, 149, 166, 154, 166, 160, 160, 161, 154, 163, 164, 160, 148, 162, 167, 165, 158, 158, 176.



    b) Which level of measurement (scale of measurement) is suitable for the following data in each example?

    i) The lake Saif-ul-Muluk is 10,578 feet above from the sea level.

    ii) If customers go to the shop for buying shoes and try different size of shoes. The sizes of shoes are 7B, 10D and 12E.

    iii) The numbering on T-shirts of players in the cricket team.

    iv) The weight of the person is 68 kg.

    Question 2: Marks: 5+3=8

    a) Find the median, harmonic mean and 23rd percentile for the following frequency distribution.


    Class Boundaries
    Frequency

    145 150
    4

    150 155
    6

    155 160
    28

    160 165
    58

    165 170
    64

    170 175
    30

    b) Explain the concept of Geometric mean? Also find the geometric mean for the following data.

    18, 19, 19, 19, 19, 20, 20, 20, 20, 20, 21, 21, 21, 21, 22, 23, 24, 27, 30, 36





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