Data Analysis Part 2

Front

What is the first quartile?

Back

The first quartile (Q1) is the value that separates the lowest 25% of a data set from the rest. It is the median of the lower half of the data.

Front

How do you find the number of data points within a specific range?

Back

To find the number of data points within a specific range, count all the values that fall between the lower and upper limits of that range.

Front

What does it mean for a team to score more than 20 points in a game?

Back

It means that in a given number of games, the team's score exceeded 20 points in those specific games.

Front

What is the minimum value in a data set?

Back

The minimum value is the smallest number in a data set.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the first quartile (Q1) and the third quartile (Q3) and measures the spread of the middle 50% of the data.

Front

How do you calculate the median of a data set?

Back

To calculate the median, arrange the data in ascending order and find the middle value. If there is an even number of values, average the two middle values.

Front

What is a data set?

Back

A data set is a collection of related data points or values that can be analyzed.

Front

What is a quartile?

Back

A quartile is a type of quantile that divides a data set into four equal parts.

Front

What is the purpose of data analysis?

Back

The purpose of data analysis is to inspect, clean, and model data to discover useful information, inform conclusions, and support decision-making.

Front

What is a frequency distribution?

Back

A frequency distribution is a summary of how often each value occurs in a data set.