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Q1:
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Which type of graph is best for showing a frequency distribution for grouped continuous data? |
A. bar graph
B. pie chart
C. histogram
D. column graph |
Answer 1:
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Q2:
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The graph shows measurements to the nearest cm.
What is the frequency of heights between 171 and 181?
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A. 3
B. 4
C. 5
D. 6
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Answer 2:
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Q3:
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What is the modal class in the graph above? |
A. 161 -171
B. 171 - 181
C. 181 - 191
D. 191 - 200
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Answer 3:
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Q4:
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Which interval would contain the median? |
A. 161 -171
B. 171 - 181
C. 181 - 191
D. 191 - 200 |
Answer 4:
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Q5:
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Estimate the median height from the graph above.
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A. 180 cm
B. 185 cm
C. 190 cm
D. 195 cm |
Answer 5:
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Q6:
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In question 5, what is the upper quartile? |
A. 178 cm
B. 185 cm
C. 187 cm
D. 193 cm |
Answer 6:
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Q7:
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The table shows the number of CDs bought by 20 people in a month.
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No. of CDs
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Frequency (f)
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0
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4
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1
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7
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2
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6
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3
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3
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How many people bought more than 1 CD?
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A. 7
B. 4
C. 16
D. 9 |
Answer 7:
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Q8:
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In question 5, what is the mean number of CDs bought? |
A. 1.4
B. 1
C. 1.5
D. 2 |
Answer 8:
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Q9:
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In question 5, what is the range of the number of CDs bought? |
A. 3
B. 4
C. 6
D. 7 |
Answer 9:
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Q10:
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The value with the highest frequency in a frequency distribution is called:
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A. the median
B. the mode
C. the mean
D. the range |
Answer 10:
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