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Descriptive Statistics Test 37

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Descriptive Statistics Test 37
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  • Question 1
    1 / -0
    Direction (7-8) : Read the following bar graph and answer the questions given below.
    Which state has the maximum total production of rice and wheat?

    Solution
    Total production of rice and wheat in U.P. = 8 + 15 = 23 tonnes
    Total production of rice and wheat in W.B. = 10 + 2 = 12 tonnes
    Total production of rice and wheat in M.P. = 4 + 4 = 8 tonnes
    Total production of rice and wheat in Maharashtra = 3 + 2 = 5 tonnes
    Total production of rice and wheat in Haryana = 3 + 5 = 8 tonnes
    So, total production of rice and wheat is maximum in U.P.
  • Question 2
    1 / -0
    Which of the following method is generally adopted by governments?
    Solution
    Indirect oral interview is helpful in the case where information cannot be collected directly. Governments generally use this method to collect information related to the nation or economy.
  • Question 3
    1 / -0
    Direction (10-13) : The given bar graph shows the marks obtained by a student in different subjects. The maximum marks of each subject is 100.
    What is the average marks obtained by the student? 

    Solution
    Formula for average marks= Sum of marks of all subjectsTotal number of subjects\dfrac{Sum\ of \ marks \ of \ all\ subjects}{Total\ number\ of\ subjects}
    Average marks = (55+90+40+80+205)(\dfrac {55+90+40+80+20}{5})
                               = 2855\dfrac {285}{5}=57 = 57
  • Question 4
    1 / -0
    Direction (9-10) : Following pictograph shows the number of tractors in five villages. Observer the pictograph and answer the following questions.
    Total number of tractors in all the five villages is _____.

    Solution
    \Rightarrow  From pictograph we have made following frequency distribution table :

     VillagesVillagesNo.ofTractorsNo.\,of\,Tractors
     AA66 
     BB55 
     CC88 
     DD33 
     EE66 
     TotalTotal2828 
    \Rightarrow  Total number of tractors in all five villages is 2828
  • Question 5
    1 / -0
    The given bar graph shows the production of Rice and Wheat in five states.
    Which of the following states is the largest producer of wheat?

    Solution
    Given graph shows the production of rice and wheat in five states. The black bar represents the rice production and the white bar represents the wheat production.

    From the graph, we can observe that the U.P. is the largest producer of wheat.
  • Question 6
    1 / -0
    When data are tabulated on the basis of  hours, days, weeks, months, years, etc it is called _________ classification.


  • Question 7
    1 / -0
    Range =
    Solution
    Range refers to the value of variation between the largest and the smallest values in a particular data set. It can be calculated as the difference between the upper limit and lower limit of a particular set of data.
  • Question 8
    1 / -0
    If more than one table is presented, it is the _____ that distinguishes one table from another. 
    Solution
    If the observations are in large in number they can be divided into two or three tables and accordingly the tables can be distinguished from one another with table numbers.
  • Question 9
    1 / -0
    When classification is done in such a way that place becomes the classifying variable, it is called ______ classification.
  • Question 10
    1 / -0
    The line graph shows the number of storybooks Armaan read in the last 44 months of a year.
    The number of storybooks that he read in October as a fraction of the total number of storybooks read is

    Solution
    Total number of storybooks read =4+2+10+8=24= 4 + 2 + 10 + 8 = 24
    Number of storybooks read in October =2= 2
    Therefore, required fraction is 224\dfrac {2}{24} == 112\dfrac {1}{12}
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