Remember that it rains on Saturday as A, and it rains on Sunday as B. It is known that p(a)=0.2.

p(b)=0.3，

P(b|a)=0.6. According to the multiplication formula, there are

P (AB) = P (A) P (B | A) = 0.2 * 0.6 = 0.12, that is, the probability of rain on Saturday and Sunday is 12%. The economic mathematics team will help you answer, please comment in time. thank you