A group of students were asked to say which animal would like most to have as a pet. The result are given below :

Make a frequency distribution tavle for the same.

Study the following frequency distribution table and answer the question given below. Frequency Distribution of Daily Income of 550 workers of a factory Which two classes have the same frequency?

Samples of four metals A,B,C and D were taken and added to the following solutions one by one.The results obtained have been tabulated as follows. Use the table above to answer the following questions about metals A,B,C and D. (i)Which is the most reactive metal? (ii)What would you observe if B is added to a solution of copper (II) sulpahate? (iii)Arrange the metals A,B,C and D in the order of decreasing reactivity.