The maximum daily temperatures (in ${ }^{\circ} C$ ) of a city during a week are given below : 28.9, 32.6, 24.6, 26.1, 29.2, 30 and 27.4 Find the range of the data.
The following are the ages (in years) of 12 teachers in a school : 36, 44, 39, 46, 35, 53, 38, 42, 55, 45, 49, 40 Arrange the above data in an ascending order and answer the questions given below : What is the mean age of the teachers in the school?
The following are the ages (in years) of 12 teachers in a school : 36, 44, 39, 46, 35, 53, 38, 42, 55, 45, 49, 40 Arrange the above data in an ascending order and answer the questions given below : What is the age of the youngest teacher in the school?