Question

Classify the data given below as primary or secondary data:

 Shoe size of 10 students of class 9.

 The blood groups of any 20 of your friends.

 Number of members in the families of your classmates.

 Marks obtained by 30 students in a mathematics test.

 Number of plants planted by 100 schools during Van Mahotsava.
plzz tell don't give irrevelant answer​

Answer 1

Answer:

Did you mean: Classify the data given below as primary or secondary data:  Shoe size of 10 students of class 9.  The blood groups of any 20 of your friends.  Number of members in the families of your classmates.  Marks obtained by 30 students in a mathematics test.  Number of plants planted by 100 schools during Van Mahotsav. please tell don't give irrelevant answer