Which statement is true about the purpose of trend lines in scatterplots? A trend line must pass through the largest data point.
A trend line must pass through the smallest data point. A trend line can be used to make predictions in real-world situations. A trend line shows the exact data points collected.
a trend line can be used to make predictions in real-world situations (the third option)
Explanation:
the first & second options are wrong because it is not a requirement for a trend line to pass through any given data point.
the fourth option is wrong because a trend line shows the general upward/downward trend of the data, and may not necessarily touch all of the data points.
the third option is correct because a trend line helps to roughly estimate the trend (hence the name) of the graph, which allows us to make predictions in real-world situations.
