Data Analysis - Graphs

Front

What is the difference between the highest and lowest scores?

Back

The difference is calculated by subtracting the lowest score from the highest score.

Front

What is the median in a set of numbers?

Back

The median is the middle value when the numbers are arranged in order.

Front

What does a symmetrical graph look like?

Back

A symmetrical graph has two halves that are mirror images of each other.

Front

How do you determine the median score from a set of scores?

Back

Arrange the scores in order and find the middle value.

Front

What is the lower quartile (Q1)?

Back

The lower quartile (Q1) is the median of the lower half of a data set.

Front

What does it mean if a graph is skewed right?

Back

A right-skewed graph has a longer tail on the right side, indicating that most data points are concentrated on the left.

Front

What does it mean if a graph is skewed left?

Back

A left-skewed graph has a longer tail on the left side, indicating that most data points are concentrated on the right.

Front

What is the purpose of using graphs in data analysis?

Back

Graphs visually represent data, making it easier to identify trends, patterns, and outliers.

Front

What is the mode in a set of numbers?

Back

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

Front

How do you calculate the range of a data set?

Back

The range is calculated by subtracting the smallest value from the largest value.