Alg 1: Keystone Algebra Review #3

Front

What is the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest. If there is an even number of values, the median is the average of the two middle numbers.

Front

How do you calculate the probability of two independent events occurring together?

Back

Multiply the probabilities of each event. This is known as the 'and' rule in probability.

Front

What is a box and whisker plot used for?

Back

A box and whisker plot is used to display the distribution of a data set, showing the median, quartiles, and any outliers.

Front

What is the range of a data set?

Back

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

Front

What does it mean if a data set is skewed?

Back

A skewed data set has a tail on one side, indicating that the data is not symmetrically distributed.

Front

What is the first step in finding the median of a data set?

Back

Order the data set from least to greatest.

Front

What is the purpose of quartiles in statistics?

Back

Quartiles divide a data set into four equal parts, helping to understand the distribution and spread of the data.

Front

How do you find the interquartile range (IQR)?

Back

The IQR is found by subtracting the first quartile (Q1) from the third quartile (Q3). It measures the spread of the middle 50% of the data.

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 the data set.

Front

What does a probability of 0 mean?

Back

A probability of 0 means that the event will not occur.