Scatterplots, Median, Mode

Which scatterplot suggests a linear relationship between x and y?

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What is the formula used to identify the position of the median?

• (n+2)/1

• n/2

• (n+1)/2

• Q₃ - Q₁

What is the median?

• 89cm

• 98cm

• 30cm

• 120cm

Describe the strength and direction of the trend

• Moderate Negative Trend

• Strong Negative Trend

• Moderate Positive Trend

• Strong Positive Trend

Describe the strength and direction of the trend

• Weak Negative Trend

• Strong Negative Trend

• Weak Positive Trend

• Strong Positive Trend

Describe the strength and direction of the trend

• Weak Negative Trend

• Strong Negative Trend

• Weak Positive Trend

• Strong Positive Trend

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

What type of relationship does this graph show?

• Positive

• Negative

• No Relationship

• Constant 

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters

• 15 chapters

• 18 chapters

• 21 chapters

What is the correlation between length of running start and distance of jump?

• positive:  the further you run the further you jump

• negative: the less you run the less distance of your jump

• positive: the further your running start the less your distance