德望學校 – S3數學 3B Chapter 11 Measures of Central Tendancy – CQ (16-21)

試卷答案:

1. a) 4
   b) mean = 3
   c) 3
2. a) 61 – 75 min
   b) mean = 54.2 min
3. a) $100
   b) median.  It is not affected by extreme value.
4. a) weight mean score of Pinky = 7.2
   b) k = 6
5. a) 31
   b) The claim is disagreed.
6. a) median of Thanos’s gems = 16.5 mm
       mode of Thanos’s gems = 27 mm
   b i) new median = 14 mm
     ii) a = 3

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