1 hour – 45 marks
Statistics [8 marks]
For the following data set relating to sales in a shopping center a temperature
| Sales | 1 | 5 | 10 | 13 | 16 | 21 | 25 |
| Temperature | 22 | 24 | 26 | 28 | 30 | 32 | 34 |
i) Find the median number of sales [1 mark]
ii) Sketch a scatter plot of temperature against sales [2 mark]
iii) Comment on the r2 value [1 mark]
iv) Define the range of temperature [1 mark]
v) What is the standard deviation of sales [2 marks]
vi) Explain whether or not this is an example of bivariant data [1 mark]
Integration
2) [6 marks]
3)
Integrate, leaving the answer in the exact form:
4i)
Differentiate
ii) Hence or otherwise find the primitive function