Kindly answer all only name whether observational study experiment study or survey Only name no need to explain 1 george wants to see if teaching children ofa school will enhance thier performance. He selects 80 children and randomly gives 40 of them a flyer about the importance of staying math every day .the remaining 40 children attend a talk show where he talks about the importance of math on the overall performance .later in the yr , the proportion of people who got the marks on the math test will be recorded by both groups 2 a member of the doctors commity thinks that the previous behavous will predict the current behaviour ,so the doctors look at the previous records ,which show that 55% got the Corona vaccine 3 a member of the hospital interviews a random sample of 100 people in canada and finds that 45% plan to get a vaccine as soon as they are eligible
Kindly answer all only name whether observational study experiment study or survey
Only name no need to explain
1 george wants to see if teaching children ofa school will enhance thier performance. He selects 80 children and randomly gives 40 of them a flyer about the importance of staying math every day .the remaining 40 children attend a talk show where he talks about the importance of math on the overall performance .later in the yr , the proportion of people who got the marks on the math test will be recorded by both groups
2 a member of the doctors commity thinks that the previous behavous will predict the current behaviour ,so the doctors look at the previous records ,which show that 55% got the Corona vaccine
3 a member of the hospital interviews a random sample of 100 people in canada and finds that 45% plan to get a vaccine as soon as they are eligible
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