Q1. Compute the average age of these horses from the first two columns of the table by the usual short method. Q2. Calculate the airthmetic mean of the annual income of fifteen families as given...

Q1. Compute the average age of these horses from the first two columns of the table by the usual short method.
Q2. Calculate the airthmetic mean of the annual income of fifteen families as given below.
The monthly income of the families in rupees in a certain locality are given below.