Intro to Data Analysis

Front

What is the mode in a data set?

Back

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

Front

How do you calculate the mean of a data set?

Back

To calculate the mean, add all the numbers in the data set and then divide by the total number of values.

Front

What is the median in a data set?

Back

The median is the middle value when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

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

Which measure of central tendency is least affected by outliers?

Back

The median is least affected by outliers.

Front

What is standard deviation?

Back

Standard deviation is a measure of how spread out the numbers in a data set are. A low standard deviation means the values tend to be close to the mean, while a high standard deviation means they are spread out over a wider range.

Front

How do you find the mode in a data set?

Back

To find the mode, identify the number that appears most frequently in the data set.

Front

What does it mean if a data set has a high standard deviation?

Back

A high standard deviation indicates that the data points are spread out over a larger range of values.

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.

Front

How do you calculate the mean of the following heights: 69, 70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77, 82?

Back

The mean is 74.6.