Question

The weights of 20 students of a class were as follows. (4)

Weights

(in kg)

40 42 45 46 48 Total

Number

of

students

4 2 6 5 3 20

Find the mean weight.​

Answer 1

Answer:

This empirical relation, formulated by the physicist Robert Boyle in 1662, states that the pressure (p) of a given quantity of gas varies inversely with its volume (v) at constant temperature; i.e., in equation form, pv = k, a constant.