Week 31 Practice Problems

Front

What is an interval in data representation?

Back

An interval is a range of values that groups data points together, often used in histograms or frequency distributions.

Front

How do you determine the interval with the greatest frequency?

Back

To find the interval with the greatest frequency, compare the number of data points in each interval and identify the one with the highest count.

Front

What does the term 'outlier' mean in data analysis?

Back

An outlier is a data point that differs significantly from other observations, often indicating variability in the data.

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points within specified intervals.

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 in the data set.

Front

What does it mean if data is symmetrical?

Back

Symmetrical data means that the left and right sides of the distribution are mirror images of each other.

Front

What is the highest score in a data set?

Back

The highest score is the maximum value in the data set, representing the best performance.

Front

How can you represent data using dots?

Back

Each dot can represent a single unit of measurement, such as a day, allowing for a visual representation of frequency.

Front

What is the significance of the tallest bar in a histogram?

Back

The tallest bar in a histogram indicates the interval with the highest frequency of data points.

Front

What does it mean if a data set has a range of 30 feet?

Back

A range of 30 feet means that the difference between the tallest and shortest values in the data set is 30 feet.