Question: 3) Write a function called reverse (di) that takes a dictionary as an argument; both the keys and values of the dictionary will be postive

3) Write a function called reverse (di) that takes a dictionary as an argument; both the keys and values of the dictionary will be postive integers. The function should return a new dictionary with the keys and values of di reversed. For example, if di is {4:22:13,42:100,5:7} then the function should return {2:413:2,100:42,7:5}

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3. The training program involves multiple classes and a large number of trainees.

6. To compare the costs and benefits of training versus nontraining investments (such as work redesign or a better employee selection system).

2. The training program is ongoing and has the potential to have an important influence on (employees or customers).