9th Class Mathematics Statistics Question Bank Statistics

  • question_answer

    DIRECTIONS (Qs. 53 - 55): Read the following passages and answer the questions that follow.   PASSAGE - 1   Miss Neha asked the children in her class, 'What is your favourite colour?' Her results are shown on the bar chart.    

    Above given information is also to be represented in a pie- chart. Calculate the angle of the sector representing yellow.

    A)  \[{{90}^{o}}\]                   

    B)  \[{{60}^{o}}\]

    C)  \[{{52}^{o}}\]                    

    D)  \[{{72}^{o}}\]

    Correct Answer: D

    Solution :

    Required angle \[=\frac{6}{30}\times {{360}^{o}}=\frac{{{360}^{o}}}{5}={{72}^{o}}\]


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