There're 12 signs of the Zodiac: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces. Each sign corresponds to a different calendar period of approximately 1 month.
Supposing that person is just as likely to be born under one sign as another, determine the probability that in group of five people at least two of them were born under the sign of Aries?