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23 June, 16:58

Timothy wants to estimate the mean number of siblings for each student in his school. He records the number of siblings for each of 75 randomly selected students in the school. What is the statistic?

(A) the specific number of siblings for each randomly selected student

(B) the 75 randomly selected students

(C) the mean number of siblings for the randomly selected students

(D) the mean number of siblings for all students in the school

(E) all the students in the school

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  1. 23 June, 17:13
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    (A) the specific number of siblings for each randomly selected student

    Step-by-step explanation:

    First Timothy wants to estimate the mean number of siblings for each student in his school

    So he selected a random sample of 75 students, then recorded the number of siblings they have

    He later find the mean.

    You can see the mean was obtained from the selected group not all students in the school hence option D and E are not correct.

    Option A clearly indicates a mean was obtained for the siblings that were from the randomly selected students.
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