How do I solve this problem??
The probability of receiving more than 300 mm of rain in each month is given in the following table. If a monthly rainfall record selected at random is found to have more than 300 mm of rain, what is the probability the record is for July? for December?
Jan 0.02 Feb 0.05 Mar 0.10 Apr 0.40 May 0.60 Jun 0.75 Jul 0.80 Aug 0.70 Sep 0.50 Oct 0.20 Nov 0.05 Dec 0.02