Answer

**Scatter Plots**

Real World Application

This graph could be used in the real world as an example of how much you should weigh around, at a certain age.

The weight of a person could also vary on the height of the person.

As you age, you weigh more.

Creating the Graph

Why is the Graph Meaningful?

Constructed Example

of Scatter Plot

Advantages

Outside Example

of a Scatter Plot

Source: http://www.disabled-world.com/artman/publish/height-weight-teens.shtml

What is a Scatter Plot?

Definition?

A graph with

two variables

plotted along two axis (x and y axis).

Use?

This graph is helpful to show a

relation

and to see a

trend

between data.

Data Requirements

Two sets of

quantitative

data are needed.

This graph is

numerical

.

Independent

and

Dependent

variables

What is the correlation of the Schoolwork vs. Video Games scatter plot?

A) Positive

B) Negative

C) No Correlation

D) None of the Above

Some people do more schoolwork while others play more video games.

This means that people should balance their time out more.

SCATTER PLOT QUESTION

To construct our scatter plot, you need to have an x-axis (time studying) and y-axis (time playing video games).

You will need to collect data. We used 11 kids, and asked them how many hours they did school work vs. the amount of hours they played video games on a daily basis.

You need to plot the points using the

x and y axis.

C: No Correlation

No line of best fit can be made.

Interpreting the Graph

Look at

axis labels

and the

title

.

Look at each point and determine the

correlation

between the

variables

.

Using your

correlation

, you can

predict

the next few values.

You can see a trend (correlation) in the data.

Scatter plots show the maximum, minimum, and outliers in the data set.

It is sometimes difficult to understand (visualize) and organize large results.

Without a large sample of data there is not a structurally conclusive result.

**By: Harsha Santhanam, Matthew Capece, and Jason Qiu**

Source: https://www2.southeastern.edu/Academics/Faculty/dgurney/Math241/StatTopics/ScatGen.htm

Scatter Plot Question

What is the:

Maximum -

Minimum -

Scatter Plot Correlations

Source: http://www.sixsigmatrainingconsulting.com/uncategorized/scatter-plots-for-visualization-of-relationships/

Source: https://www2.southeastern.edu/Academics/Faculty/dgurney/Math241/StatTopics/ScatGen.htm

Scatter Plot Answer

What is the:

Maximum - 277

Minimum - 257

Summary

Scatter plots are an easy way to give a visual on a collection of data.

They gives a picture of the

relationship

between

two variables

.

Correlations

are easily seen within the data.

Work Cited or Consulted

http://www.disabled-world.com/artman/publish/height-weight-teens.shtml

https://www2.southeastern.edu/Academics/Faculty/dgurney/Math241/StatTopics/ScatGen.htm

http://dictionary.reference.com/browse/scatter+plot?s=t

http://www.stat.yale.edu/Courses/1997-98/101/scatter.htm

http://www.bertlynn.com/page6.html

http://www.timetoplaymag.com/articles/videogamereviews/

Line of

Best Fit

Quiz:

The equation of the line is

y=27/4x+9

Using this equation predict what the weight of a

22 year old

male would be.

Answer:

157.5 pounds

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