Introduction to Data Interpretation


Introduction to Data Interpretation

Direction: In the following questions, a graphical representation of income and expenditure of 5 persons during the month of January has been given. Read the graph and answer the questions.

  1. What is the income range of the persons?









  1. View Hint View Answer Discuss in Forum

    As per the given bar graph , we have
    The income of the 4th person = $ 8.75
    The income of the 5th person = $ 4.25
    Income range = The income of the 4th person - The income of the 5th person

    Correct Option: D

    As per the given bar graph , we have
    The income of the 4th person = $ 8.75
    The income of the 5th person = $ 4.25
    Income range = The income of the 4th person - The income of the 5th person
    ∴ Income range = $ (8.75 – 4.25) thousand = $ 4500


  1. What is the average income of five persons per month?









  1. View Hint View Answer Discuss in Forum

    From the given bar diagram , we see
    Total income =$ 30.75 thousand
    Number of persons = 5

    Average =
    Total income
    Number of persons

    Correct Option: C

    From the given bar diagram , we see
    Total income =$ 30.75 thousand
    Number of persons = 5

    Average =
    Total income
    Number of persons

    Average =
    30.75
    5

    Average = $ 6.15 thousands = $ 6150



Direction: A health drink company prepares the drink of three different flavours P, Q, R. The production of three flavours over a period of six years has been expressed on bar graph provided below. Study the graph and answer the questions.

  1. What is the difference between the average production of flavour Q in 2008, 2009 and 2010 from that of flavour P in 2005, 2006 and 2007 (in lakh bottles)?









  1. View Hint View Answer Discuss in Forum

    On the basis of given graph in question ,
    Total production of flavour Q in 2008, 2009 and 2010 = 55 + 50 + 55 = 160 lakh bottels
    Number of given years = 3

    Average production of flavour Q during 2008, 2009 and 2010 =
    Total production of flavour Q in 2008, 2009 and 2010
    Number of given years

    Average production of flavour Q during 2008, 2009 and 2010 =
    160
    lakh bottles
    3

    Total production of flavour P in 2005, 2006 and 2007 = 50 + 40 + 55 = 160 lakh bottels
    Number of given years = 3
    Average production of flavour P in 2005, 2006 and 2007 =
    Total production of flavour P in 2005, 2006 and 2007
    Number of given years

    Average production of flavour P in 2005, 2006 and 2007 =
    145
    lakh bottles
    3

    Correct Option: D

    On the basis of given graph in question ,
    Total production of flavour Q in 2008, 2009 and 2010 = 55 + 50 + 55 = 160 lakh bottels
    Number of given years = 3

    Average production of flavour Q during 2008, 2009 and 2010 =
    Total production of flavour Q in 2008, 2009 and 2010
    Number of given years

    Average production of flavour Q during 2008, 2009 and 2010 =
    160
    lakh bottles
    3

    Total production of flavour P in 2005, 2006 and 2007 = 50 + 40 + 55 = 160 lakh bottels
    Number of given years = 3
    Average production of flavour P in 2005, 2006 and 2007 =
    Total production of flavour P in 2005, 2006 and 2007
    Number of given years

    Average production of flavour P in 2005, 2006 and 2007 =
    145
    lakh bottles
    3

    Required difference =
    160
    -
    145
    33

    Required difference =
    15
    = 5 lakh bottles
    3


  1. What was the approximate decline in the production of flavour R in 2010 as compared to the production of 2008 in percentage?









  1. View Hint View Answer Discuss in Forum

    On the basis of given graph in question ,
    The production of flavour R in 2010 = 40 lakh bottles
    The production of flavour R in 2008 = 60 lakh bottles
    Decrease = 60 - 40 = 20 lakh bottles

    Percentage decrease =
    Decrease
    The production of flavour R in 2008

    Correct Option: B

    On the basis of given graph in question ,
    The production of flavour R in 2010 = 40 lakh bottles
    The production of flavour R in 2008 = 60 lakh bottles
    Decrease = 60 - 40 = 20 lakh bottles

    Percentage decrease =
    Decrease
    The production of flavour R in 2008

    Percentage decrease =
    60 - 40
    × 100 = 33
    1
    % or 33.33%
    603



  1. The average annual production of which flavour was maximum in the given period?









  1. View Hint View Answer Discuss in Forum

    As per the given bar graph , we have
    Total production of Flavour P = 50 + 40 + 55 + 45 + 60 + 50 = 300 lakh bottles
    Total production of Flavour Q = 55 + 60 + 50 + 55 + 50 + 55 = 325 lakh bottles
    Total production of Flavour R = 45 + 50 + 60 + 60 + 45 + 40 = 300 lakh bottles

    Correct Option: B

    As per the given bar graph , we have
    Total production of Flavour P = 50 + 40 + 55 + 45 + 60 + 50 = 300 lakh bottles
    Total production of Flavour Q = 55 + 60 + 50 + 55 + 50 + 55 = 325 lakh bottles
    Total production of Flavour R = 45 + 50 + 60 + 60 + 45 + 40 = 300 lakh bottles
    Hence , the average annual production of Q flavour is maximum in the given period .