Math 2U Integration and Statistics

1 hour – 45 marks

Statistics [8 marks]

For the following data set relating to sales in a shopping center a temperature 

Sales151013162125
Temperature22242628303234

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

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