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Intro to Stats Brainlyne Flashcards | StudBud
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Intro to Stats Brainlyne
What is a sample?
What is a population?
Intro to Stats Brainlyne
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1
What is a population?
The entire group of people or objects being studied
A smaller group of people or objects that are selected to be studied
A characteristic that can change or vary
The information that is collected and analyzed
2
What is a sample?
A characteristic that can change or vary
A smaller group that is selected from the population to be studied
The information that is collected and analyzed
The entire group of people or objects being studied
3
What is an independent variable?
A variable that is measured as an outcome of an experiment
A variable that is kept constant throughout an experiment
A variable that is changed or manipulated by the experimenter
A variable that depends on another variable
4
Which of the following is an example of a dependent variable in a study on the effect of caffeine on memory?
The time of day the test is taken
The age of the participants
The memory test scores
The amount of caffeine consumed
5
Which of the following is an example of a real-world application of statistics?
Analyzing data to predict future trends in the stock market
Conducting a literature review of classic novels
Studying the anatomy of a frog
Studying the behavior of ants in an ant farm
6
Which of the following is an example of an independent variable in a study on the effect of caffeine on memory?
The age of the participants
The time of day the test is taken
The memory test scores
The amount of caffeine consumed
7
What is a control group?
A group of participants who receive a treatment
A group of participants who are all exposed to the same conditions
A group of participants who do not receive a treatment
A group of participants who are randomly selected from a population
8
Which of the following is an example of sample bias?
Choosing only students from a class for a study about studying habits
Choosing only male students to participate in a study about sports
Choosing a sample that is too small to represent the population
Choosing a random sample of students from a school
9
What is a dependent variable?
A variable that is kept constant throughout an experiment
A variable that is measured as an outcome of an experiment
A variable that is changed or manipulated by the experimenter
A variable that depends on another variable
10
What is sample bias?
A sample is too large and unwieldy to analyze
A sample is chosen randomly from a population
A sample is too small to accurately represent the population
A sample is chosen in a way that is not representative of the population
11
What are statistics?
The study of data
The interpretation of numbers and data
The study of numbers
The study of numbers and data
12
What are descriptive statistics?
The use of statistical methods to draw conclusions about a population
The use of numerical and graphical methods to summarize and describe data
Use of statistical methods for inferences or predictions about a population
Branch of statistics that creates smaller groups to study them
