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Q1:
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When a sample does not accurately represent the group from which it is taken this is called |
A. a census
B. a biased sample
C. a random sample
D. a population |
Answer 1:
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Q2:
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Which of the following could not be used to represent the average of a set of statistical data? |
A. range
B. mean
C. median
D. mode |
Answer 2:
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Q3:
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Which of the following could be used to show the spread of a set of data? |
A range
B. median
C. mode
D. mean |
Answer 3:
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Q4:
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The mean of 2, 4, 6 and 6 is
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A. 4.5
B. 5
C. 6
D. 4 |
Answer 4:
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Q5:
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The range of 2, 4, 6 and 6 is
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A. 4.5
B. 5
C. 6
D. 4 |
Answer 5:
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Q6:
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The median of 2, 4, 6 and 6 is
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A. 4.5
B. 5
C. 6
D. 4 |
Answer 6:
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Q7:
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The mode of 2, 4, 6 and 6 is |
A. 4.5
B. 5
C. 6
D. 4 |
Answer 7:
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Q8:
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Which type of graph would be best to compare the medians of two samples? |
A. bar graph
B. pie chart
C. box and whisker
graph
D. stem and leaf
graph |
Answer 8:
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Q9:
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On a box and whisker graph, the whiskers give an indication of |
A. the quartiles
B. the median
C. out-lying values
D. the mean |
Answer 9:
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Q10:
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A survey which covers everymember of a population is called |
A. a random sample
B. a biased sample
C. a census
D. an election |
Answer 10:
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