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WorksheetsStatistics Multiple-Choice Quiz
Total questions: 14
Worksheet time: 7mins
Which of the following is a characteristic of a normal distribution curve?
It is skewed to the right.
It has multiple modes.
It is symmetric about the mean.
It touches the x-axis at two points.
In statistics, what term describes a characteristic or attribute that can assume different values?
Data
Variable
Sample
Population
What is the term for the values (measurements or observations) that variables can assume?
Data
Sample
Population
Parameter
Which type of statistics involves generalizing from samples to populations and making predictions?
Descriptive statistics
Inferential statistics
Qualitative statistics
Quantitative statistics
Variables that have distinct categories based on some characteristic or attribute are known as:
Quantitative variables
Qualitative variables
Discrete variables
Continuous variables
Which level of measurement classifies data into mutually exclusive categories without any order or ranking?
Nominal
Ordinal
Interval
Ratio
In a normal distribution, what does the z-value represent?
The mean of the distribution
The median of the distribution
The number of standard deviations a particular X value is away from the mean
The mode of the distribution
According to the Central Limit Theorem, as the sample size increases, the shape of the distribution of the sample means will approach a:
Uniform distribution
Normal distribution
Binomial distribution
Poisson distribution
What is the term for the difference between the sample measure and the corresponding population measure due to the fact that the sample is not a perfect representation of the population?
Sampling error
Measurement error
Standard error
Random error
Which level of measurement possesses all the characteristics of interval measurement, and there exists a true zero?
Nominal
Ordinal
Interval
Ratio
A variable that can assume an infinite number of values between any two specific values and is obtained by measuring is called a:
Discrete variable
Continuous variable
Qualitative variable
Random variable
Which type of statistics consists of the collection, organization, summarization, and presentation of data?
Inferential statistics
Descriptive statistics
Predictive statistics
Analytical statistics
What is the term for a group of subjects selected from a population?
Sample
Census
Parameter
Statistic
Which level of measurement ranks data, and precise differences between units of measure do exist; however, there is no meaningful zero?
Nominal
Ordinal
Interval
Ratio
