Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

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Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

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Common Core #25-28 SCATTER PLOTS, VENN DIAGRAMS, TWO-WAY FREQUENCY TABLES

Transcript of Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

Page 1: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

Scatter PlotsBelow is a sample scatter plot, can you tell me what

they are designed to show.

Page 2: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

ANSWER

• Scatter plots are most often used to show correlations or relationships among data.

Page 3: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

Common Core #25-28

SCATTER PLOTS, VENN DIAGRAMS, TWO-WAY FREQUENCY TABLES

Page 4: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

Scatter Plots Type #1

• POSITIVE

• STRONG or WEAK

As the number of hours that you study increases your overall class grade increases

Page 5: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

Scatter Plots – Positive Correlation

Study Time Class Grade

0 55

0.5 61

1 67

1.5 73

2 81

2.5 89

3 91

3.5 93

4 95

4.5 97

How Study Time Affects Grades

0

20

40

60

80

100

120

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

Time in hours

Ove

rall

grad

e

Make a prediction for a study time of 5 hours.

Page 6: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

Scatter Plot Type #2

• NEGATIVE

• STRONG or WEAK

The age of a person and amount of time spent playing video games.

Page 7: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

Scatter Plots – Negative Correlation

Make a prediction a 5 year old? 80 year old?

Page 8: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

Scatter Plots #3

• NONE

There is no relationship between the number of shirts someone owns and their annual salary

Page 9: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

Scatter Plots – No CorrelationHow does your wardrobe affect your

salary

0

20

40

60

80

0 10 20 30 40 50

Number of shirts owned

Sala

ry

Can you make a prediction based on this data?

Page 10: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

Line of Best Fit & Outliers

• A line of best fit is a line that best represents the data on a scatter plot and often shows a trend in the data.

• Outliers are points too far away from the line of best fit.

Page 11: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

NAME THAT SCATTER PLOTWEAK POSITIVE

Page 12: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

NAME THAT SCATTER PLOTNONE

Page 13: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

NAME THAT SCATTER PLOTSTRONG POSITIVE

Page 14: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

NAME THAT SCATTER PLOTSTRONG NEGATIVE

Page 15: Scatter Plots Below is a sample scatter plot, can you tell me what they are designed to show.

Practice Problems

Pages 388-389

3-5, 11-12