Final answer:
The correct answer is option 4. To determine the greatest number of songs downloaded in a single weekend from the dot plot, one should look for the highest number of dots aligned above a number. Assuming 'O 10' is an option from the misprinted array, and if the dot plot reflects this, 10 would represent the greatest number of songs downloaded on a single weekend.
Step-by-step explanation:
The student's question involves analyzing a dot plot to determine the greatest number of songs downloaded on a single weekend. Each blue dot on the plot represents the number of songs downloaded over 15 successive weekends. To find the greatest number, one needs to identify the weekend with the highest count of dots aligned vertically since each dot represents one weekend.
The typos in the provided information are not related to interpreting a dot plot, but we can still apply a basic understanding of data representation. When reading a dot plot, the number with the highest concentration of dots directly above it typically indicates the highest quantity being represented. Without the actual dot plot to refer to, we can deduce that the answer to the greatest number of songs downloaded on a single weekend would be whichever number is the highest provided in the options if listed on the actual dot plot.
Assuming a typo in the array of options given ('<< O 9 << O 8O 6 O 10 >>'), the greatest number visible is 10. Therefore, if the dot plot were correctly interpreted, 10 would be the highest number of songs downloaded in a single weekend among the options provided. For an accurate answer, one should check the actual dot plot and count the dots.