TREND
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.
Video Examples: Trends in International Math and Science Study
 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.
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.
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