study. Explain.
Mathematics, 30.10.2020 17:40 Paulalex8765
-
whether the situation is an example of an experiment or an observational
study. Explain.
A nutritionist wants to know if taking vitamins keeps people from getting colds. She
gives 100 people a vitamin supplement for 2 months, and compares the results to
100 people who do not take vitamins.
3
1
a) This is an experiment. The nutritionist is applying a treatment (taking
vitamins) instead of simply gathering data.
b)
This is an observational study. The nutritionist is applying a treatment (taking
vitamins) instead of simply gathering data.
c)
This is an observational study. The nutritionist gathers data instead of
applying a treatment.
4
d)
This is an experiment. The nutritionist gathers data instead of applying a
treatment.
Answers: 2
Mathematics, 21.06.2019 14:00
Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.
Answers: 1
Mathematics, 21.06.2019 17:30
Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.
Answers: 3
Mathematics, 21.06.2019 18:30
True or false? a circle could be circumscribed about the quadrilateral below.
Answers: 3
-
whether the situation is an example of an experiment or an observational
study. Explain.
study. Explain.
Chemistry, 10.07.2021 07:10
Social Studies, 10.07.2021 07:10
Physics, 10.07.2021 07:10
History, 10.07.2021 07:10
Computers and Technology, 10.07.2021 07:10
Mathematics, 10.07.2021 07:10
Biology, 10.07.2021 07:20
History, 10.07.2021 07:30
Mathematics, 10.07.2021 07:30
Mathematics, 10.07.2021 07:30
Mathematics, 10.07.2021 07:30