Final answer:
To estimate the number of gold rings within a certain weight range, the average amount of gold per ring is required; without this information, an estimate cannot be calculated.
Step-by-step explanation:
The question 'Work out an estimate for the number of rings that contain between 1.4g and 3g of gold' can be understood as a problem that involves calculating the number of rings with a specific range of gold mass.
To approach this problem, one would need additional information about the average weight of gold per ring. However, this information is not provided in the question or the provided references. Estimating the number of rings would typically involve dividing the total amount of gold by the average amount of gold per ring. Without this key piece of data, it is impossible to give an accurate estimate.
Moreover, the references provided do not contain any direct information about the average gold weight in a ring or any relevant data that could be used to calculate the average mass of gold in a single ring. Since relevant information is missing, a precise estimate cannot be provided. In conclusion, to provide an appropriate response to this question, we would require the average mass of gold per ring to perform the calculation.