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Shtirlitz [24]
2 years ago
12

Naomi was measuring and cutting yarn in inches for an art project.she cut 9 pieces of the yarn.

Mathematics
1 answer:
Andrej [43]2 years ago
4 0

Answer:

i don't know this question but you can just measure it

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34kurt

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.

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3 years ago
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scatter plot 3

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No correlation exists when there is no relationship between two variables. For example there is no relationship between the x-axis to the y-axis while the other plots has noticeable linear correlation.

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180-129= 51
angle 4 is equal to angle 12 so missing angle 12= 51°
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