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Statistics Test...

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  • Question 1
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    In a group of students, mean weight of boys is 80 kg and mean weight of girls is 50kg.If the mean weight of all the students taken together is 60kg, then the ratio of the number of boys to that of the girls is

  • Question 2
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    For a normal distribution, we have

  • Question 3
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    A data consists of two 2’s, four 4’s, six 6’s, three 8’s and 10. The mode of the data is

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