Math, asked by mandeepak1, 6 hours ago

② 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.​

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Answered by thurglaanil
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