Final answer:
The time taken to complete a jigsaw puzzle can be modeled by a normal distribution. We can calculate probabilities and cumulative relative frequencies using this model.
Step-by-step explanation:
The time taken to complete a jigsaw puzzle can be modeled by a normal distribution. This means that the distribution of the time can be described using a bell-shaped curve. The specific information I would like to address regarding this modeling is about calculating probabilities and cumulative relative frequencies.
To calculate the probability that a person will wait fewer than 6.1 minutes, we can use the normal distribution model to find the area under the curve to the left of 6.1 minutes. This probability represents the chance of completing the jigsaw puzzle in less than 6.1 minutes.
The cumulative relative frequency for waiting less than 6.1 minutes is the proportion of people who completed the jigsaw puzzle in less than 6.1 minutes. It is calculated by summing up the relative frequencies of all the time intervals less than 6.1 minutes.