subject
Mathematics, 14.02.2020 22:20 dxpebetty64

Determine whether the situation calls for a survey, an observational study, or an experiment.
you want to find out if a new drug can help decrease the symptoms of migraine headaches.
a experiment
b observational study
c survey

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 17:30
Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?
Answers: 2
question
Mathematics, 21.06.2019 19:10
If i have 20$ and i gave 5$ away how much i got
Answers: 1
question
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
question
Mathematics, 21.06.2019 21:00
Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.
Answers: 1
You know the right answer?
Determine whether the situation calls for a survey, an observational study, or an experiment.
...
Questions
question
Mathematics, 07.12.2021 07:50
question
Mathematics, 07.12.2021 07:50
question
English, 07.12.2021 07:50
question
Chemistry, 07.12.2021 07:50
Questions on the website: 13722367