Descriptive Statistics Quiz

What do descriptive statistics summarize?

• The importance of research

• The history of statistics

• The characteristics of a data set

• The types of surveys

What is the first step of statistical analysis in quantitative research?

• To analyze the data

• To describe characteristics of the responses

• To present the findings

• To collect data

What does inferential statistics help you decide?

• Whether data confirms or refutes a hypothesis

• The type of survey to use

• The average of a data set

• The frequency of responses

Which of the following is NOT a type of descriptive statistic?

• Correlation

• Variability

• Distribution

• Central tendency

What does central tendency measure?

• The total number of responses

• The frequency of values

• The average of values

• The spread of values

In a frequency distribution, what do you summarize?

• The frequency of each value

• The average of responses

• The types of variables

• The total number of participants

What is the mean?

• The middle value of a data set

• The highest value in a data set

• The most frequent response

• The average of all response values

How do you find the median?

• Add all values and divide by the number of responses

• Subtract the lowest value from the highest

• Order the values and find the middle one

• Count the most frequent value

What does the range measure?

• The total number of responses

• The difference between the highest and lowest values

• The spread of the data

• The average of the data set

What does standard deviation indicate?

• The most common response

• The total number of responses

• How spread out the values are

• The average score of the data set