a) The following data represent the number of years patients survived after being diagnosed with terminal cancer:

a) The following data represent the number of years patients survived after being diagnosed with 
terminal cancer:  
  0.4, 0.5, 0.6, 0.6, 0.6, 0.8, 0.8, 0.9, 0.9, 0.9,  
  1.2, 1.2, 1.3, 1.4, 2.1, 2.4, 2.5, 4.0, 4.5, 4.6   (i) Construct a stem-and-leaf display      (6 marks) (ii) Supposedly you are inserting the above stem-and-leaf display in a report to be 
submitted to management, write a short comment on the diagram.   
         (4 marks)  
b) The following data shows the weight (in kg) of 13 crabs found in a restaurant on a particular evening: 
  3.4   1.2   1.7   2.4   2.4   1.1   0.9   0.8   1.2   1.6   0.7   1.2   1.3



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