Prob Stat Final Exam Practice

Front

What is the difference between causation and correlation?

Back

Causation indicates that one event is the result of the occurrence of another event, while correlation indicates a relationship or association between two variables without implying that one causes the other.

Front

What is the mean in statistics?

Back

The mean is the average of a set of numbers, calculated by adding all the values together and dividing by the number of values.

Front

How do you find the mode of a data set?

Back

The mode is the value that appears most frequently in a data set.

Front

What does a box plot represent in statistics?

Back

A box plot visually displays the distribution of a data set, showing the median, quartiles, and potential outliers.

Front

What is a quartile in statistics?

Back

A quartile is a type of quantile that divides a ranked data set into four equal parts.

Front

How do you interpret a frequency diagram?

Back

A frequency diagram shows how often each value occurs in a data set, helping to visualize the distribution of the data.

Front

What is the significance of the first quartile (Q1)?

Back

The first quartile (Q1) is the median of the lower half of a data set, representing the 25th percentile.

Front

What is the purpose of a box and whisker plot?

Back

A box and whisker plot summarizes a data set by displaying its central tendency, variability, and outliers.

Front

How do you calculate the mean of a data set?

Back

To calculate the mean, sum all the values in the data set and divide by the total number of values.

Front

What does it mean if a data set has no mode?

Back

If a data set has no mode, it means that no number appears more than once.