There is `30%` chance that it rains on any particular day. What is the probability what where is at least one rainy day within a period of 7 days ? Given that there is at least one rainy day, What is the probability that there are at least two rainy days ?

Options

A. `(14/5xx(7/10)^(6))/(1+(7/10)^(7))`
B. `(7/10)^(6)-14/17`
C. `13/5xx(7/10)^(6)`
D. `(1-14/15xx(7/10)^(6))/(1-(7/10)^(7))`

Answer

D