Final answer:
The data point (739.3, 845.5) cannot be expressed in the form x ± margin of error without additional information. The margin of error is calculated from the standard error and critical value which are not provided.
Step-by-step explanation:
To express the data point (739.3, 845.5) in the form x ± margin of error, we first need to define what the margin of error is. Since the question does not provide us with a specific margin of error or confidence interval, we cannot calculate an exact answer. Typically, a margin of error is given by a confidence interval calculation using the standard error of the estimate and the desired confidence level (for example, 95% confidence). If the question had provided the standard error and the critical value from a confidence interval table, we could calculate it using the formula:
Margin of Error = (Critical value) * (Standard error)
Once we have the margin of error, we could express the data point as:
x ± margin of error
For example, if the margin of error were 10, the data point (739.3, 845.5) would be expressed as 739.3 ± 10 for the x-coordinate and similarly for the y-coordinate if its margin of error were known.