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AnilSinghBora
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Guru

The blood groups of 30 students of Class VIII are recorded as follows: A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O, A, AB, O, A, A, O, O, AB, B, A, O, B, A, B, O. Represent this data in the form of a frequency distribution table. Which is the most common, and which is the rarest, blood group among these students? Q.1

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Hello sir i want to know the best solution of the question from exercise 14.2  of math of Statistics chapter of class 9th give me the best and easy for solving this question how i solve it of question no.1 The blood groups of 30 students of Class VIII are recorded as follows: A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O, A, AB, O, A, A, O, O, AB, B, A, O, B, A, B, O. Represent this data in the form of a frequency distribution table. Which is the most common, and which is the rarest, blood group among these students?

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  1. Frequency is the number of students having the same blood group. The frequency is represented in the table or the frequency distribution table:

    Blood Group Number of Students(Frequency)
    A 9
    B 6
    O 12
    AB 3
    Total 30

    The most common Blood Group is the blood group with highest frequency: O

    The rarest Blood Group is the blood group with lowest frequency: AB

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