24 Questions
What is the primary focus of biostatistics?
Use of statistical concepts in biological sciences and medicine
What type of variable is 'gender'?
Qualitative variable
What is the characteristic of a discrete random variable?
It is characterized by gaps or interruptions in the values it can assume
What is the role of an independent variable in an experiment?
It can be controlled and has a direct effect on the dependent variable
What is the term for the raw materials of statistics?
Data
What is the term for a variable that cannot be exactly predicted in advance?
Random variable
What is the independent variable in an experiment to determine the amount of sunlight needed for the growth of a specific plant?
The amount of sunlight exposed to the plant
What is a characteristic of a ratio level measurement?
It has a true zero
What is the main difference between a population and a sample?
A population is the entirety of the group, while a sample is a subset of the population
What is the level of measurement that describes ranking or order, but the difference or ratio between two rankings may not always be the same?
Ordinal Level
What is the purpose of statistical inference?
To reach a conclusion about a population
What is the limitation of the interval level of measurement?
It has no true zero
What is a simple random sample?
A sample of size n drawn from a population of size N
What is a research study?
A scientific study of a phenomenon of interest
What is the definition of measurement in the context of research?
The assignment of numbers to objects or events according to a set of rules
What is the main difference between an experiment and a research study?
Experiments involve manipulations of conditions, research studies do not
What is the level of measurement that has the same properties as the interval level, but also has a true zero?
Ratio Level
What is stratified random sampling?
A type of probability method that divides the population into homogenous groups
What is the primary purpose of the scientific method?
To provide an accurate representation of observable phenomena
What is an observation in the context of the scientific method?
A phenomenon or a group of phenomena
What is the purpose of designing an experiment in the scientific method?
To test a statistical hypothesis
What does precision refer to in the context of the scientific method?
The consistency of a measurement
What is the outcome of the scientific method?
A conclusion drawn from collected data with some degree of confidence
What is the difference between reliability and precision?
Reliability is sometimes used to mean precision
Learn the basics of biostatistics, including data sources, types of biological data, and the role of statistics in biological research. Understand the importance of biostatistics in the field of biology and medicine.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
