Cancer Survival Analysis: Qualitative Analysis
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.
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
(i) Compute the mean and median. (3 marks)
(ii) Determine the shape of the distribution based on the sample data? Explain your conclusion.
(a) It is noted that 8% of Kaplan students are left handed. If twenty (20) students are randomly selected, calculate the
(i) probability that none of them are left-handed, (2 marks)
(ii) probability that at most 2 are left-handed, (3 marks)
(iii) mean and standard deviation for the number of left-handed students
(b)Do you agree that “if two events are mutually exclusive then these two events will be independent”? Why?
Provide one business-related example each, with explanation, for mutually exclusive and independent events
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