Data Review Flashcard

Front

What is the median?

Back

The median is the middle value in a list of numbers sorted in ascending order. If there is an even number of values, the median is the average of the two middle numbers.

Front

How do you find the range of a set of data?

Back

The range is found by subtracting the smallest value from the largest value in the data set.

Front

What is the opposite of a number?

Back

The opposite of a number is the number that is the same distance from zero on the number line but in the opposite direction.

Front

What does it mean for data to be symmetrical?

Back

Symmetrical data means that the left and right sides of the data distribution are mirror images of each other.

Front

What is the mode of a data set?

Back

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

Front

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

Back

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

Front

What is a skewed distribution?

Back

A skewed distribution is one where the data is not evenly distributed, causing one tail to be longer or fatter than the other.

Front

What is a bell curve?

Back

A bell curve is a graph of a normal distribution, where most of the data points cluster around the mean, creating a shape that resembles a bell.

Front

How do you identify the mode in a data set?

Back

To identify the mode, look for the number that appears most often in the data set.

Front

What is the significance of the range in data analysis?

Back

The range provides a measure of how spread out the values in a data set are, indicating the variability.