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Presentation of Data Test - 14

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Presentation of Data Test - 14
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  • Question 1
    1 / -0

    Directions For Questions

    The frequency curve shows temperatures over $$11$$ year in Bangalore. Use the graph to answer the questions below.
    Which year had the lowest temperature?

    ...view full instructions

    What is the difference in temperature between $$2003 $$ and $$2008$$?

    Solution
    In $$2003$$ temperature $$=$$ $$30^{o}C$$
    In $$2008$$ temperature $$=$$ $$25^{o}C$$
    So, the difference $$= 30 - 25 =$$ $$5^{o}C$$
  • Question 2
    1 / -0

    Directions For Questions

    The frequency curve shows temperatures over $$11$$ year in Bangalore. Use the graph to answer the questions below.
    Which year had the lowest temperature?

    ...view full instructions

    How many years have temperature higher than $$35^{o}C$$?

    Solution
    Years $$2002$$ and $$2005$$ are having the temperature higher than $$35^{o}C$$.
    Thus answer is $$2$$.
  • Question 3
    1 / -0

    Directions For Questions

    The frequency curve shows the number of students ages $$11$$ through $$17$$ in Chennai city that have mobile phones. Refer to the frequency curve below to answer each question.

    ...view full instructions

    At what age do students have the greatest number of mobile phones?

    Solution
    At the age $$16$$, the students have the greatest number of mobile phones.
  • Question 4
    1 / -0

    Directions For Questions

    The frequency curve shows the number of students ages $$11$$ through $$17$$ in Chennai city that have mobile phones. Refer to the frequency curve below to answer each question.

    ...view full instructions

    What was the least number of mobile phones at any age?

    Solution
    $$10$$ was the least number of mobile phones at any age.
  • Question 5
    1 / -0

    Directions For Questions

    The frequency curve shows temperatures over $$11$$ year in Bangalore. Use the graph to answer the questions below.
    Which year had the lowest temperature?

    ...view full instructions

    What is the range of temperatures in Bangalore over $$11$$ years?

    Solution
    Range of temperature = highest temperature $$-$$ lowest temperature
    $$= 45 - 12 =$$ $$33^{o}C$$
    So, the range of temperatures in Bangalore over $$11$$ years is $$33^{o}C$$.
  • Question 6
    1 / -0

    Directions For Questions

    Study the following line graph and answer the questions based on it.

    ...view full instructions

    What is the average numbers of vehicles manufactured by Company X over the given period ? (rounded off to nearest integer)

    Solution
    Average number of vehicles manufactured by Company X
    $$\displaystyle =\frac { 1 }{ 6 } \times \left( 119000+99000+141000+78000+120000+159000 \right) $$
    $$\displaystyle =119333$$
  • Question 7
    1 / -0

    Directions For Questions

    Study the following table and answer the questions.
    Number of Candidates Appeared and Qualified in a Competitive Examination from Different States Over the Years.
    State$$1997$$$$1997$$$$1998$$$$1998$$$$1999$$$$1999$$$$2000$$$$2000$$$$2001$$$$2001$$
    App.Qual.App.Qual.App.Qual.App.Qual.App.Qual.
    M$$5200$$$$720$$$$8500$$$$980$$$$7400$$$$850$$$$6800$$$$775$$$$9500$$$$1125$$
    N$$7500$$$$840$$$$9200$$$$1050$$$$8450$$$$920$$$$9200$$$$980$$$$8800$$$$1020$$
    P$$6400$$$$780$$$$8800$$$$1020$$$$7800$$$$890$$$$8750$$$$1010$$$$9750$$$$1250$$
    Q$$8100$$$$950$$$$9500$$$$1240$$$$8700$$$$980$$$$9700$$$$1200$$$$8950$$$$995$$
    R$$7800$$$$870$$$$7600$$$$940$$$$9800$$$$1350$$$$7600$$$$945$$$$7990$$$$885$$

    ...view full instructions

    In which of the given years the number of candidates appeared from State P has maximum percentage of qualified candidates?
    Solution
    The percentages of candidates qualified to candidates appeared from State P during different years are:
    For $$1997 \left (\dfrac {780}{6400}\times 100\right )$$% $$= 12.19$$%.
    For $$1998 \left (\dfrac {1020}{8800}\times 100\right )$$% $$= 11.59$$%.
    For $$1999 \left (\dfrac {890}{7800}\times 100\right )$$% $$= 11.41$$%.
    For $$2000 \left (\dfrac {1010}{8750}\times 100\right )$$% $$= 11.54$$%.
    For $$2001 \left (\dfrac {1250}{9750}\times 100\right )$$% $$= 12.82$$%
    $$\therefore$$ Maximum percentage is for the year $$2001$$.
  • Question 8
    1 / -0

    Directions For Questions

    The following line graph gives the percent profit earned by two Companies $$X$$ and $$Y$$ during the period $$1996 - 2001.$$

    ...view full instructions

    If the expenditure of Company $$Y$$ in $$1997$$ was $$Rs. 220$$ crores, what was its income in $$1997$$ ?

    Solution
    Profit percent of Company $$Y$$ in $$1997 = 35.$$
    Let the income of Company $$Y$$ in $$1997$$ be $$Rs. x$$ crores.
    Then, $$\displaystyle 35=\frac { x-220 }{ 220 } \times 100\Rightarrow x=297$$
    $$\displaystyle \therefore $$ Income of Company $$Y$$ in $$1997 = Rs. 297$$ crores.
  • Question 9
    1 / -0

    Directions For Questions

    Study the following line graph and answer the questions based on it.

    ...view full instructions

    In which of the following years, the difference between the productions of Companies X and Y was the maximum among the given years ?

    Solution
    The difference between the productions of Companies X and Y in various years are:
    For 1997 (139000 - 119000) = 20000.
    For 1998 (120000 - 99000) = 21000.
    For 1999 (141000 - 100000) = 41000.
    For 2000 (128000 - 78000) = 50000.
    For 2001 (120000 - 107000) = 13000.
    For 2002 (159000 - 148000) = 11000.
    Clearly, maximum difference was in 2000.
  • Question 10
    1 / -0

    Directions For Questions

    Study the following line graph and answer the questions based on it.

    ...view full instructions

    What is the difference between the number of vehicles manufactured by Company Y in 2000 and 2001 ?

    Solution
    No. of vehicles manufactured by company Y in $$2000 = 128000$$
    No. of vehicles manufactured by company Y in $$2001 = 107000$$
    Required difference = (128000 - 107000) = 21000.
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