Question

what relationship exists between the daily high temperature and bottled water sales?
no correlation
a positive correlation
a negative correlation
a weak correlation

Explanation:

Step1: Analyze the scatter plot trend

Observe the direction of the points as temperature (x - axis) increases. The number of bottled water sales (y - axis) generally increases with higher temperatures.

Step2: Identify correlation type

A positive correlation exists when as one variable (temperature) increases, the other variable (bottled water sales) also tends to increase. The points show an upward - right trend, so it's a positive correlation. "No correlation" would mean no trend, "negative" is decreasing with x, and "weak" is a very scattered trend (here the trend is clear enough for positive).

Answer:

B. a positive correlation