Math I 4.3

Estimate the correlation coefficient

• r=-1
• r=1
• r=-0.5
• r=0.5

Estimate the correlation coefficient.

• r=0
• r=-1
• r=1
• r=2

Estimate the correlation coefficient.

• r=-1
• r=1
• r=-0.5
• r=0.5

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• Weak Positive

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• No Correlation

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• Weak Positive

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• Weak Positive

Describe the correlation in the graph shown.

• Weak Negative
• Weak Positive
• Strong Negative
• Strong Positive

Stan uses the equation y = 20x + 50 to estimate the dollars in his savings account for any month. Which statement is true?

• He started with approximately $50
• His account increases by $50 per month.
• He started with approximately $20
• He takes $20 out per month

What type of correlation describes the following sentence:
The temperature and the number of people that go to the pool.

• positive
• negative
• none
• cannot be determined