Graphs & Data Analysis #1

Front

What is the median of a data set?

Back

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

Front

How do you find the range of a data set?

Back

The range is found by subtracting the smallest number in the data set from the largest number.

Front

What is the mode of a data set?

Back

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

Front

What does a double line graph represent?

Back

A double line graph shows the relationship between two sets of data over the same period of time.

Front

What is a dot plot?

Back

A dot plot is a simple way to display data using dots above a number line, where each dot represents one data point.

Front

How do you interpret a line graph?

Back

A line graph shows trends over time, where the x-axis typically represents time and the y-axis represents the quantity being measured.

Front

What is a sample in data analysis?

Back

A sample is a subset of a population used to represent the whole population in a study.

Front

What does it mean if data is skewed?

Back

Skewed data means that the data points are not evenly distributed, causing the mean to be different from the median.

Front

What is a bar graph used for?

Back

A bar graph is used to compare different groups or categories of data.

Front

What is the purpose of data analysis?

Back

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