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  • Question 1
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  • Question 2
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    The pictogram shows the number of pupils who cycle to school. What is the total number of pupils who use cycle for going school?

  • Question 3
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    Given above is a bar graph showing the heights of six mountain peaks. Read the above diagram and answer the following:
    Write the ratio of the heights of highest peak and the lowest peak.

  • Question 4
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    Students at a local college were asked how many hours they slept last night. The adjoining chart shows the data . A bar graph of this data will be made on a grid that is 20 units. What scale would be most appropriate for the axis labelled "Number of Students" ?

    Hours of SleepNumber of Students
    614
    726
    828
    915
    More than 106

  • Question 5
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    Standard deviation of the distribution $$1, 3, 5,....., 13$$ will be

  • Question 6
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    In the following table pass percentage of three schools from the year $$2001$$ to the year $$2006$$ are given. Which school students performance is more consistent?


    $$2001$$$$2002$$$$2003$$$$2004$$$$2005$$$$2006$$
    School (X)$$80$$$$89$$$$79$$$$83$$$$84$$$$65$$
    School (Y)$$92$$$$94$$$$76$$$$75$$$$80$$$$63$$
    School (Z)$$93$$$$97$$$$67$$$$63$$$$70$$$$85$$

  • Question 7
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    Study the graph carefully and answer the questions given below it. What is the total wheat import during all the given years (in thousand tonnes)?

  • Question 8
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    Find the standard deviation of $$210, 240, 250, 260, 220, 230$$ and $$270$$.

  • Question 9
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    The ages (in years) of a family of 6 members are 1, 5, 12, 15, 38 and 40. The standard deviation is found to be 15.9.  After 10 years the standard deviation is

  • Question 10
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    The S.D. of the following freq. dist.

    Class 0-1010-2020-3030-40
    $$f_i$$1342

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