Data Analysis and Probability Review

Front

What is the Mean Absolute Deviation (MAD)?

Back

The Mean Absolute Deviation (MAD) is a measure of the dispersion of a set of data points around their mean, calculated as the average of the absolute differences between each data point and the mean.

Front

How do you calculate the Mean Absolute Deviation?

Back

1. Find the mean of the data set. 2. Calculate the absolute distance of each data point from the mean. 3. Find the mean of these absolute distances.

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 (impossible) and 1 (certain).

Front

How do you calculate the probability of an event?

Back

Probability = (Number of favorable outcomes) / (Total number of possible outcomes).

Front

What are odds in favor?

Back

Odds in favor of an event are the ratio of the number of favorable outcomes to the number of unfavorable outcomes.

Front

If the odds in favor of an event are 5:16, what is the probability of the event occurring?

Back

Probability = 5 / (5 + 16) = 5/21.

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of data points plotted on a simple scale, often used to show frequency of data.

Front

How can you determine variability in data?

Back

Variability can be determined by looking at the spread of data points; more spread indicates more variability.

Front

What is the median?

Back

The median is the middle value of a data set when it is ordered from least to greatest.

Front

How do you find the median of a data set?

Back

1. Order the data from least to greatest. 2. If the number of data points is odd, the median is the middle number. If even, it is the average of the two middle numbers.