Final answer:
The student's question involves estimating values and precise calculation in mathematics, specifically related to frequency tables, significant figures, and data analysis. Proper rounding and understanding of measurement precision are emphasized.
Step-by-step explanation:
The investigation described pertains to estimating values and expressing the results with the appropriate level of precision, which involves rounding numbers to the nearest hundredths place. In mathematics, especially in the context of frequency tables and levels of measurement, it's important to match the precision of your calculations with the precision of the original data. This means that if the data were measured to the nearest tenth, the final statistic should be reported to the nearest hundredth.
Additionally, a key part of understanding data analysis is recognizing the significance of significant figures and units when expressing numerical answers. For instance, in the subtraction example given (78,500 m - 362 m), the correct result after considering significant figures would be 78,100 m, as the original measurement is only precise to the hundreds place.
Finally, the principles of accuracy, precision, and estimating values are applied when entering data into a calculator or computer to write linear equations, ensuring that the number of decimal places reported is consistent with these concepts.