Final answer:
If a scatter plot chart shows only one dot, it could be due to identical data points or incorrect plotting. Check the data and adjust the scales of the axes to make sure all data points are displayed and to identify trends or clusters.
Step-by-step explanation:
If your scatter plot chart is only showing a single dot, it suggests that all your data points have the exact same values or there has been a mistake in plotting the data. To resolve this and see more clusters for your data set, you'll want to check whether you have inputted the data correctly or that there is indeed some variation in your data. If the data are correct, ensure that your axis scales are appropriately set. The scale of the axes must be such that all data points can be displayed properly and any trends in the data can be easily identified.
When analyzing your data, look for areas where your data appear to cluster. Clustering can provide insights into the relationships or groupings within your data. If you're dealing with a linear relationship, it may appear as a line of dots. However, sometimes the data may show a non-linear pattern, suggesting that a curve would better represent the relationship. In case your scatter plot identifies any outliers, confirm these by using numerical methods such as calculating whether a point falls more than two standard deviations from the best-fit line or by using the interquartile range (IQR) for box-and-whisker plots.