What is the average annual temperature of Trivandrum in degree celcius?
The average ambient temperatures (in degree Celsius) for a region for 15 years from 2001-2015 is given below. 26.3, 29.7, 31, 29.8, 26.8, 27.6, 27.4, 27.0, 27.6, 27.8, 30.0, 32.0, 28.9, 30.5, 29.5 Find the temperature corresponding to the 1st quartile.