10th Class Mathematics Test Unit 6 - Basic Statistics

Unit 6 – Basic Statistics

Quiz

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1. 1. What is statistics?
   1.   Study of shapes
   2.   Study of data collection, analysis, and interpretation
   3.   Study of probabilities only
   4.   Study of algebraic equations
2. 2. The arithmetic mean of the data set {2,4,6,8,10}\{2, 4, 6, 8, 10\}{2,4,6,8,10} is:
   1.   6
   2.   5
   3.   7
   4.   8
3. 3. The mode of the data set {1,2,2,3,3,3,4}\{1, 2, 2, 3, 3, 3, 4\}{1,2,2,3,3,3,4} is
   1.   2
   2.   3
   3.   4
   4.   None of the above
4. 4. The median of the data set {3,5,7,9,11}\{3, 5, 7, 9, 11\}{3,5,7,9,11} is:
   1.   7
   2.   6
   3.   8
   4.   5
5. 5. In a data set, if all values are equal, the standard deviation will be:
   1.   Zero
   2.   One
   3.   Equal to the mean
   4.   Undefined
6. 6. A histogram is used to represent:
   1.   Continuous data
   2.   Discrete data
   3.   Categorical data
   4.   None of the above
7. 7. The range of a data set is calculated as:
   1.   Mean - Median
   2.   Maximum value - Minimum value
   3.   Sum of all values / Number of values
   4.   Mode + Median
8. 8. The sum of deviations from the mean for a data set is always:
   1.   Positive
   2.   Zero
   3.   Negative
   4.   Equal to the mean
9. 9. Which of the following measures the spread of data?
   1.   Mean
   2.   Median
   3.   Standard deviation
   4.   Mode
10. 10. The data set {10,20,30,40,50}\{10, 20, 30, 40, 50\}{10,20,30,40,50} is:
    1.   Symmetrical
    2.   Positively skewed
    3.   Negatively skewed
    4.   None of the above