An archer hits a bull’s-eye with a probability of 0.78, and the results of different attempts can be taken to be independent of each other. If the archer shoots four arrows, calculate the probability...

An archer hits a bull’s-eye with a probability of 0.78, and the results of different attempts
can be taken to be independent of each other. If the archer shoots four arrows, calculate
the probability that: (a) The first bull’s-eye is scored? (b) The third bull’s-eye is scored?
(c) Exactly two arrows score bull’s-eyes. (d) At least three arrows score bull’s-eyes