The question seems to be asking about the probability of the interval between two events occurring within a specific time frame, between 121 minutes and 140 minutes. To calculate this probability, we need more information, such as the distribution of the time intervals between events. Without additional information, it is not possible to provide a specific answer or calculate the probability. Different situations and distributions can lead to different probabilities. For example, if we assume that the time intervals between events follow a uniform distribution, where all values within a given range are equally likely, we can calculate the probability. Let's assume that the time intervals between events are uniformly distributed between 0 and 200 minutes. In this case, the probability of the interval falling within the range of 121 to 140 minutes can be calculated as follows: 1. Calculate the total range of possible values: 200 minutes - 0 minutes = 200 minutes. 2. Calculate the range of values within the specified time frame: 140 minutes - 121 minutes = 19 minutes. 3. Divide the range of values within the specified time frame by the total range of possible values: 19 minutes / 200 minutes = 0.095. 4. Round the result to the desired number of decimal places (in this case, two decimal places): 0.095 (rounded to two decimal places) = 0.10. Therefore, if the time intervals between events follow a uniform distribution between 0 and 200 minutes, the probability of the interval falling within the range of 121 to 140 minutes would be approximately 0.10 or 10%.