Chapter 1: Introduction To Statistics

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| By Fdiakomihalis

Fdiakomihalis

Community Contributor

Quizzes Created: 1 | Total Attempts: 1,661

Questions: 8 | Attempts: 1,661 | Updated: Mar 18, 2023

1.

What is the difference between an observational study and an experiment?
2.

Identify the sampling technique used. Every fifth person boarding a plane is searched thoroughly.
- A.
  
  Stratified
- B.
  
  Systematic
- C.
  
  Cluster
- D.
  
  Convenience
- E.
  
  Random
Correct Answer
B. Systematic

Explanation
A systematic sample is a sample in which each member of the population is assigned a number.

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2
0
3.

A double- blind experiment is used to increase the placebo effect
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
False. A double-blind experiment is used to decrease the placebo effect.

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4.

Is the science of collecting, organizing, analyzing and interpreting data in order to make decisions.

Correct Answer
Statistics

Explanation
Statistics is the science that involves the collection, organization, analysis, and interpretation of data to make informed decisions. It utilizes various mathematical techniques and tools to summarize and analyze data, providing insights and patterns that help in understanding and solving real-world problems. By studying statistics, one can effectively analyze data sets, identify trends, make predictions, and draw meaningful conclusions, which are crucial for decision-making in various fields such as business, economics, healthcare, and social sciences.

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4
5.

Consist of information coming from observations, counts, measurements, or responses.

Correct Answer
Data

Explanation
Data refers to information that is obtained or collected through observations, counts, measurements, or responses. It can be in the form of numbers, facts, statistics, or any other type of information that is gathered and recorded. Data is used in various fields and disciplines to analyze, interpret, and make informed decisions based on the information obtained. It is an essential component in research, analysis, and problem-solving processes.

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4 0

Chapter 1: Introduction To Statistics

What is the difference between an observational study and an experiment?

Identify the sampling technique used. Every fifth person boarding a plane is searched thoroughly.

A double- blind experiment is used to increase the placebo effect

Is the science of collecting, organizing, analyzing and interpreting data in order to make decisions.

Consist of information coming from observations, counts, measurements, or responses.