Question

which scatter plot shows that the number of gallons of milk sold decreased as the price per gallon increased? a. scatter - plot description with x - axis price per gallon in $ and y - axis number of gallons sold b. scatter - plot description with x - axis price per gallon in $ and y - axis number of gallons sold c. scatter - plot description with x - axis price per gallon in $ and y - axis number of gallons sold d. scatter - plot description with x - axis price per gallon in $ and y - axis number of gallons sold

Explanation:

Step1: Understand negative - correlation

A negative correlation means that as one variable (price per gallon) increases, the other variable (number of gallons sold) decreases. In a scatter - plot, this is represented by points that generally slope downwards from left to right.

Step2: Analyze each option

• Option A: Points generally slope upwards, indicating a positive correlation (as price increases, number of gallons sold increases).
• Option B: Points are scattered without a clear upward or downward trend.
• Option C: Points generally slope upwards, indicating a positive correlation.
• Option D: Points generally slope downwards from left to right. As the price per gallon on the x - axis increases, the number of gallons sold on the y - axis decreases.

Answer:

D.