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Thread: STA301 assignment no 1 apring 2011 solution

  1. #1
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    Icon51 STA301 assignment no 1 apring 2011 solution

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    full solution in attachment

    Assignment No.1 (Course STA301)
    Spring 2011 (Total Marks 30)
    Question 1: Marks: 4+3+3=10
    a) Answer the following questions.
    i. What are the main goal /Purpose of Statistical Infe
    Main goals of statistical inference:
    Making inferences about the characteristics that de
    group of data
    ii. Write down names of methods of allocation the sampl
    stratified sampling.
    b). Find the missing frequencies and complete table.
    25 --- 1
    c) From the following data, represent the different subjects in two
    classes and no. of students on various subjects of a college by making
    multiple bar charts.
    Subjects Englis Mathemati Statistics Pak. Urd
    h cs Studies u
    Class A 40 33 21 80 19
    Class B 50 39 30 68 10
    Question 2: Marks: 4+3+3=10
    a) Answer the following questions
    i. Define a bi-model distribution.
    A bimodal distribution most commonly arises as a mixture of
    two different unimodal distributions (i.e. distributions having
    only one mode). In other words, the bimodally distributed
    random variable X is defined as Y with probability α or Z with
    probability (1 − α), where Y and Z are unimodal random
    variables and 0 < α < 1 is a mixture coefficient.
    ii. The relation between A.M , G.M and H.M is
    . AM ≥ G.M ≥ H.M
    Under what situation these are equal.
    Class A
    Class B

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  2. #2
    Junior Member
    Join Date
    Nov 2010
    Please PPL check the counting ... there are two many mistakes ....
    I dodn't know why ppl post wrong answers in solution file

  3. #3
    Administrator Xpert's Avatar
    Join Date
    May 2010
    it is not formated well. because of some problem.

  4. #4
    Junior Member
    Join Date
    Jan 2011
    well work dear

  5. #5
    Join Date
    Oct 2011
    oh dear yah old assignment hai new wali nahi hai.
    Rabeel Website

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