Final answer:
The question about weight seems confused, since human weights do not typically fall within the given range. The relevant part of the question involves calculating the probability for a sum weight of men, which uses standard statistical methods assuming a normal distribution.
Step-by-step explanation:
The question appears to be asking for an estimation of the student's approximate weight within the range of weights provided, using examples that reference standard units of weight conversions and statistical measures. However, the typical weight for a human is not provided in the range of 30000mg to 30000lbs. Most humans weigh between 100lbs and 250lbs. We can also interpret this question as relating to probability and statistics based on the information provided, which requires determining the probability that 20 randomly selected men will have a sum weight that exceeds a certain threshold. For the probability question, assuming a normal distribution, the mean weight for a group of men and the standard deviation are key factors in finding this probability.
For example, if men have an average weight of 172 pounds with a standard deviation of 29 pounds, and we are finding the probability that 20 men have a sum weight greater than 3600 pounds, we would need to calculate a probability based on the normal distribution curve.