The difference between an observational study and an experiment is that.
A in an experim...
Mathematics, 08.04.2020 20:27 Weser17
The difference between an observational study and an experiment is that.
A in an experiment, cause-and-effect is analyzed, and in an observational study, it is not.
B in an experiment, one group is studied over a short period of time, and in an observational study, the group is studied over a longer period of time.
C in an observational study, only one group is studied, and in an experiment, two groups are studied.
D in an observational study, the researchers do not control treatment, and in an experiment, they do.
Answers: 2
Mathematics, 21.06.2019 21:50
Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next
Answers: 1
Mathematics, 21.06.2019 22:30
An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount
Answers: 1
Mathematics, 21.06.2019 23:30
Tim earns $120 plus $30 for each lawn he mows.write an iniqualityvto represent how many lawns he needs to mow to make more than $310
Answers: 2
Mathematics, 12.01.2021 05:50
English, 12.01.2021 05:50
Geography, 12.01.2021 05:50
Biology, 12.01.2021 05:50
Mathematics, 12.01.2021 05:50
Physics, 12.01.2021 05:50
Biology, 12.01.2021 05:50
History, 12.01.2021 05:50
English, 12.01.2021 05:50
Mathematics, 12.01.2021 05:50
History, 12.01.2021 05:50