CSA #2 Review

Front

What is the upper quartile (Q3)?

Back

The upper quartile (Q3) is the median of the upper half of a data set, representing the value below which 75% of the data falls.

Front

How do you find the median of a data set?

Back

To find the median, arrange the numbers in order from least to greatest and identify the middle number. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the mode of a data set?

Back

The mode is the number that appears most frequently in a data set. A data set may have one mode, more than one mode, or no mode at all.

Front

What is the difference between mean, median, and mode?

Back

Mean is the average of all numbers, median is the middle value when numbers are ordered, and mode is the most frequently occurring number.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

Front

How do you calculate the mean of a data set?

Back

To calculate the mean, add all the numbers together and divide by the total number of values.

Front

What is a data set?

Back

A data set is a collection of numbers or values that can be analyzed to find patterns or insights.

Front

What does it mean if a data set is skewed?

Back

A skewed data set is one where the values are not symmetrically distributed, causing the mean to differ from the median.

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that shows the median, quartiles, and any outliers.

Front

What is an outlier in a data set?

Back

An outlier is a value that is significantly higher or lower than the other values in a data set.