CSA #2 Review

Front

What is the median of a data set?

Back

The median is the middle value of a data set when the numbers are arranged in order from least to greatest.

Front

How do you find the median of a data set with an odd number of values?

Back

To find the median, arrange the numbers in order and select the middle number.

Front

How do you find the median of a data set with an even number of values?

Back

To find the median, arrange the numbers in order and calculate the average of the two middle numbers.

Front

What does it mean if a data set is skewed left?

Back

A left-skewed data set has a longer tail on the left side, indicating that there are a few lower values pulling the mean down.

Front

What does it mean if a data set is skewed right?

Back

A right-skewed data set has a longer tail on the right side, indicating that there are a few higher values pulling the mean up.

Front

What is the most appropriate measure of center for skewed data?

Back

The median is the most appropriate measure of center for skewed data because it is less affected by extreme values.

Front

What is the difference between mean and median?

Back

The mean is the average of all values, while the median is the middle value when the data is ordered.

Front

Why is the median preferred over the mean in certain data sets?

Back

The median is preferred in skewed data sets because it provides a better representation of the center without being influenced by outliers.

Front

What is a measure of center?

Back

A measure of center is a statistical value that represents the center point or typical value of a data set.

Front

What is the shape of a normal distribution?

Back

A normal distribution is symmetric and bell-shaped, with most values clustering around the mean.