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week 6 Flashcards | StudBud
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week 6
week 6
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Answers
1
What is a 'population' in statistics?
The entire group being studied
A random sample from a dataset
A type of survey method
A single data point
2
What is a 'sample' in statistics?
A specific type of variable
A smaller subset of the population used for analysis
The total number of data points in a dataset
A statistical technique
3
Which of the following is NOT a basic indicator in descriptive statistics?
Variance
Mean
Median
Regression coefficient
4
Which of the following is an example of inferential statistics?
Listing the highest-grossing movies
Sorting data alphabetically
Calculating the average test score in a classroom
Predicting election results using polling data
5
What is a 'variable' in statistics?
A fixed number that doesn’t change
A measurable characteristic that can change
A formula used in probability
A statistical method
6
Why are research skills important in statistics?
They replace the need for statistical tools
They are only used in financial markets
They help in creating meaningful studies and models
They are only useful for academics
7
Which is NOT a real-world application of statistics?
Risk analysis in finance
Developing AI algorithms
Analyzing historical events without numerical data
Identifying consumer behavior in marketing
8
Which statistical concept is most useful for analyzing time series data?
Variance
Mode
Standard Deviation
Regression Analysis
9
What is the purpose of prescriptive statistics?
To conduct surveys
To predict future trends
To summarize large amounts of data
To provide recommendations based on analysis
10
Why is statistics important in daily life?
It helps in checking the weather forecast
It is only used by scientists
It has no real-world applications
It is only for business professionals
11
What is one key benefit of understanding statistics in the workplace?
It eliminates the need for decision-making
It helps in internal company research and decision-making
It is only useful for financial analysts
It allows companies to rely only on intuition
12
Which spreadsheet tools can read this sheet and export to xlsx format?
Google Docs
LibreOffice
Excel
Numbers
13
If a dataset has a high variance, what does that indicate?
The data points are close to the mean
The data points are spread out
The data is normally distributed
The dataset is incorrect
14
Why is technical literacy important when learning statistics?
It replaces the need for statistical software
It is only needed for AI development
It allows people to read and understand technical reports
It is not relevant to statistics
15
Which of the following best defines statistics?
The use of numerical data to make informed decisions
A branch of algebra
A way to store large amounts of data
The study of numbers without practical application
16
Which field does NOT heavily rely on statistical analysis?
Machine Learning
Finance & Marketing
Stock Market
Poetry Writing
17
Which field benefits from statistical methods for hypothesis testing?
Scientific Research
Machine Learning
Data Science
All of the above
18
Which of the following is an example of a descriptive statistic?
Identifying future trends in a market
Summarizing sales data using the mean and median
Making recommendations based on analysis
Predicting next month’s stock prices
19
What statistical measure best represents the central tendency of skewed data?
Standard Deviation
Mode
Median
Mean
20
Which principle is fundamental to making valid statistical inferences?
The standard deviation must be zero
The mean must always be used as the main statistic
The data must be arranged in ascending order
The sample must be representative of the population
21
What type of statistics is used to predict future trends?
Inferential statistics
Predictive statistics
Descriptive statistics
Prescriptive statistics
