What is the best way to describe the character of momotaro, the little peachling

Momotaro, whose name means, son of a peach, can be described as a fictional character from a japanese tale, granted by heaven to be the only son of an elderly couple unable to have a child themselves.

He came out of a big peach brought over by the river and grew up to be a strong, brave, adventurous young man. Momotaro became a hero as he defeated demons in a far away island  in the company of a pheasant, a dog, and a monkey he found on his way there.

- Preventive Maintenance

Explanation:

Given that,

No. of breakdowns          0      1       2       3      4

Frequency                        9      2       4       4      1

So,

No. of breakdowns          Monthly probability

      0                                        0.45

       1                                         0.10

       2                                         0.20

        3                                        0.20

        4                                        0.05

 Total                                          1.00

As per the above data,

The breakdowns expected every month = (0 * 0.45) + (1 * 0.10) + (2 * 0.20) + (3 * 0.20) + (4 * 0.05)

= 1.30

∵ The cost expected for the breakdowns every month = 1.30 * $400

= $ 520

Now,

Per month cost of preventive maintenance = (0.5 * $400) + $200

= $ 400

Thus, preventive maintenance would be more economical.