Trend
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Definition of Trend
If the values of one set of data increases and the values of other set also increases then the two sets of related data shows a positive trend. If the values of one set of data increases and the values of other set decreases then the two sets of related data shows a negative trend. If the data shows no relation then that set shows no trend.
If the data values of a set increases and the data values of other set also increases then the two sets of related data shows a positive trend. If the data values of one set increases and the data values of other set decreases then the two sets of related data shows a negative trend. If the data shows no relation then that set shows no trend.
More About Trend
 Trend Line  In a scatter plot, a line that closely fits the data points is called a Trend line
 If one set of data increases, then the other set tends to decrease then the trend shown is called a negative trend.
 If increase in one set of data causes the other set to increase, then the trend shown is called a positive trend.
 If one set of data increases, then the other set does not seem to increase or decrease then it does not have any trend.
Video Examples: Trends in International Math and Science Study
Examples on Trend
Solved Example on Trend
Ques: Describe the trend shown by the scatter plot.
Choices:
A. No trendB. Positive trend
C. Negative trend
Correct Answer: B
Solution:

Step 1: Each point in the scatter plot denotes the depth of water in the respective
twominute interval
Step 2: As the time in minutes increases, the depth of water in the bathtub tends to increase. So, the scatter plot shows a positive trend.