A school has 30 classes of 50 students each. A sample of 150 students is to be taken from the school. Answer 1, 2 & 3. (

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A School Has 30 Classes Of 50 Students Each A Sample Of 150 Students Is To Be Taken From The School Answer 1 2 3 1 (115.23 KiB) Viewed 527 times

Q2) 1 & 2 & 3
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subject : census
A school has 30 classes of 50 students each. A sample of 150 students is to be taken from the school. Answer 1, 2 & 3. (1) A sample obtained by taking 5 students randomly from each of the 30 classes is (a) cluster (b) stratified (c) simple (d) none of the above. (2) A sample obtained by taking all students in 3 classes taken randomly from the 30 classes is (a) cluster (b) stratified (c) simple (d) none of the above. (3) A sample obtained by taking 15 students randomly from each of 10 classes taken randomly from the 30 classes is (a) cluster (b) stratified (c) simple (d) none of the above.