In BLAST search, the Expected value is the number of nucleotide M in the query sequence multiply by the number of nucleotides N in total in the nucleotides sequence database and consecutively multiplied by the p value for the random match distribution. The Expected value means the number of random matches you may encounter in a database search as you do.  A query sequence is 96 nucleotide long is used to search a nucleotide database that contained 5 X 10 ^7 nucleotides (that is: 5 time 10 to the power of 7), and the p value to find an exact match is 2 X 10 ^ (-9). What is the expected value? (precision to 0.00001)

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