Answer:
B. The observational study is a cross-sectional study because information is collected at a specific point in time.
Step-by-step explanation:
1) There are three types of Observational Studies: Case-control, cross-sectional and Cohort.
2) Since the researchers collected information from those 1800 adults at a certain time, then we can call it a cross-sectional study. It does not provide solid results since the research was not done over a period to collect further information. We don't know, for example, much more than what that association deeply mean.
3) If we wonder more, then the researchers would have to track those adults over a given period, i.e. a Cohort would be necessary.
4) Moreover, it's not "retrospective" for virtually every question, always makes us look back somehow, and it does not categorize a kind of observational study.
Answer:
the correct answer is D
Step-by-step explanation:
-2= y-4
——
0-2
-2= y-4
——
-2
(y-4)•-2 = -2
-2y+8=-2
-2y=-10
————
-2
y=5
hope this helps
J would have to say that the answer is d. im sorry if im wrong.
Answer:
Super Sports is offering a 20% discount on each pair of shoes, which were ... A 9% processing fee will be applied to the cost of the shoes, plus a ... What is the difference in the total costs of the 12 pairs of shoes ... Next, we know that the shoes were originally priced at $72.50 and that a 6.5% sales tax will be ...
1 answer
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9 votes:
Answer:$46.77Step-by-step explanation:
Step-by-step explanation:
