I have two problems on this h/w assignment I cant seem to figure out. One seems simple but at the same time could be tricky and I know I probably am not doing it right. The other is just screwing me. Any help would be appreciated.

1)If four people are selected at random, find the probability that all four were born in January.


2)It has been reported that 3% of all cars on the highway are traveling at speeds in excess of 70 mph. If the speeds of four random automobiles are measured via radar, what is the probability that at least one car is going over 70 mph?