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Measures of Central Tendency Test - 1

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Measures of Central Tendency Test - 1
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Which partition value divides the total set of values into four equal Parts

    Solution

    Quartiles are the measures which divide the data into four equal parts, each portion contains equal number of observations.

     

  • Question 2
    1 / -0

    The most frequently occurring number in a set of values is called the ____.

    Solution

    The mode of a set of data values that appears most often or The most frequently occurring.

     

  • Question 3
    1 / -0

    The ______________ is that value obtained by summing all elements in a set and dividing by the number of elements.

    Solution

    Mean is defined as the sum of the values of all observations divided by the number of observations.

     

  • Question 4
    1 / -0

    --- is the half distance between the third and first quartiles

    Solution

    Quartile Deviation (QD) means the semi variation between the upper quartiles (Q3) and lower quartiles (Q1) in a distribution. The formula is Q3 - Q1/2.

     

  • Question 5
    1 / -0

    MODE

    Solution

    Mode is the  most fashionable values of a distribution, because it is repeated the highest number of times in the series. It is denoted by Mo.

     

  • Question 6
    1 / -0

    Shoes manufacturing company only manufactures shoes for adults. Company wants to know the most popular size. Which type of central tendency will be the most appropriate?

    Solution

    Mode is the value that is, most populer or most likely to be sampled.

     

  • Question 7
    1 / -0

    X > M > Z shows relationship

    Solution

    A distribution is positively skewed. When Mean> Median>Mode shows relationship.

     

  • Question 8
    1 / -0

    Approximately what percentage of scores falls within one standard deviation of the mean in a normal distribution?

    Solution

    As per empirical rule, about 68% score falls in one standard deviation of mean.

     

  • Question 9
    1 / -0

    The mean of ten numbers is 58. If one of the numbers is 40, what is the mean of the other nine?

    Solution

    Mean  is calculated  as the sum of the values of all observations divided by the number of observations

    Mean = 58, N= 10 

    sum of the values of all observations = 58 x 10 = 580

    Corrected sum of the values of all observations = 580 - 40 = 540

    Corrected number of observations = 10 – 1 = 9

    Correct Mean = 540/9 = 60

     

  • Question 10
    1 / -0

    There are two methods of finding mode in discrete series

    Solution

    The value of mode can be determined by the both methods of inspection method & grouping method in discrete series.

     

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