Cumulative frequency and box plots Quiz
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5 questions, one answer each
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1. For 60 values, at which cumulative frequency is the median read?
- A.
- B.
- C.
- D.
2. The lower quartile is 14 and the upper quartile is 26. What is the interquartile range?
- A.
- B.
- C.
- D.
3. Which five values are needed to draw a box plot?
- A. Mean, mode, median, range, total
- B. Minimum, lower quartile, median, upper quartile, maximum
- C. Minimum, mean, maximum, range, mode
- D. Lower quartile, mean, upper quartile, IQR, total
4. Set P has median 50 and IQR 6. Set Q has median 48 and IQR 14. Which statement is correct?
- A. Q is more consistent than P.
- B. P has a lower median than Q.
- C. P is more consistent than Q.
- D. Q has a smaller IQR than P.
5. The cumulative frequency graph of 80 values is read at 20. Which value does this give?
- A. The lower quartile
- B. The median
- C. The upper quartile
- D. The maximum