Before a cycling competition, Emek and Luna analyzed data showing each rider's weekly training distance and race finishing time. They plotted the paired values on a scatterplot and observed a fairly strong negative relationship: riders who trained longer distances generally finished races in less time. One point lay noticeably away from the overall pattern, suggesting an unusual performance that deserved further investigation. Rather than letting that single result dominate their conclusions, they based their predictions on the overall trend. Their analysis helped the team prepare realistic race strategies and enter the competition with confidence.

Challenges

Challenge 1 of 5

Challenges

Challenge 1 of 4
Hint
In a negative relationship, one value tends to decrease as the other increases.
Which statement correctly explains the negative relationship in the riders' scatterplot?
Riders who trained longer distances generally had shorter finishing times.Riders who trained longer distances generally had longer finishing times.All riders who trained the same distance had exactly the same finishing time.Training distance and finishing time showed no overall pattern.
Correct! Greater training distances were generally associated with shorter finishing times.
Think about how finishing time changed as training distance increased.
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Hint
Subtract the unusual point from the total number of points.
Emek and Luna plotted data for 18 riders. If 1 point lay noticeably away from the overall pattern, how many points remained near the general trend?
Correct! Seventeen points remained near the general trend.
Subtract 1 unusual point from the 18 total points.
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Hint
Consider both the main group of points and the point that lies away from it.
A teammate says the unusual point proves that the scatterplot's negative relationship is wrong. Which response is best?
The unusual point should be investigated, but one point does not erase the overall trend.The teammate is correct because every point must fit a trend exactly.The unusual point should be removed without checking why it is different.The unusual point proves that longer training causes slower race times.
Correct! An unusual point deserves attention but does not automatically cancel the overall relationship.
A scatterplot trend describes the overall pattern, not a rule that every point must follow exactly.
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Yarış Günü Tahminleri
TR
ARC_G08_DP_01_STORY_03
Yarış Günü Tahminleri
Race Day Predictions
EN
ARC_G08_DP_01_STORY_03
Race Day Predictions