Neco 2019 Geography Question 10

The table below gives the average monthly rainfall (mm) and temperature (°C) for a city. Rainfall (mm): Jan 120, Feb 80, Mar 100, Apr 150, May 200, Jun 250, Jul 300, Aug 280, Sep 220, Oct 180, Nov 140, Dec 130. Temperature (°C): Jan 28, Feb 29, Mar 30, Apr 31, May 32, Jun 33, Jul 34, Aug 34, Sep 33, Oct 31, Nov 30, Dec 28. (a) Compute the coefficient of variation (CV) of the rainfall series, expressed as a percentage to one decimal place. (b) Identify the month in which the ratio rainfall / temperature is greatest. (c) Approximate the Pearson correlation coefficient \(r\) between rainfall and temperature and state whether the relationship is strong, moderate or weak (use |r| > 0.8 as strong, 0.5-0.8 as moderate, <0.5 as weak).