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Oksi-84 [34.3K]
2 years ago
9

Identify the type of observational study​ (cross-sectional, retrospective, or​ prospective) described below. A research company

uses a device to record the viewing habits of about 2500 ​households, and the data collected over the next 10 years will be used to determinenbsp whether nbspthe proportion of households tuned to a particular educational programnbsp decreases.
Mathematics
1 answer:
Sindrei [870]2 years ago
7 0

Answer:

Prospective study

Step-by-step explanation:

<em>A cross-sectional study, also known as transverse study, is a type of observational study that analyzes data from a population at a specific point in time.</em> This kind of observation is used if cases cannot be identified a priori or if the prevalence of the disease or condition needs to be determined.

Cohort studies are when two or more groups of subjects are followed over time to see if they develop some disease or if some event occurs, there are two type of cohort studies, prospective and retrospective. <em>Prospective studies (or follow-up studies) follow subjects with different exposures until some point in time where something happens or the study ends</em>, r<em>etrospective studies use historical data</em> to make comparisons based on risk factors or exposures that occurred before the events.

Considering the information given and the observational study exposed to the question, we can conclude that we are talking about a prospective study because data is collected over the next 10 years.

I hope you find this information useful and interesting! Good luck!

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Step-by-step explanation:

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Louis brings 79 pencils to school. After he gives each of his 15 classmates an equal number of pencils, he will give any leftove
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Answer:

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Step-by-step explanation:

a. The total number of pencils Louis brings to school is:

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Then, in order to calculate the number of pencils Louis’s teacher will receive after he gives each of his 15 classmates an equal number of pencils, you need to solve the division show in the picture attached.

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<em>This means that Louis’s teacher will receive 4 pencils.</em>

b. If Louis decides instead to take an equal share of the pencils along with his classmates, his teacher will receive more pencils; because the amount of pencils each classmate will receive will be less. This means that the number of pencils leftover will increase, leaving more pencils for his teacher.

4 0
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