Which 10 stocks should I invest my $100,000 in? Can't just randomly pick, it has to be explained using stats (standard deviation, etc.)

Average Return St. dev of return Stock 1 5 28 Stock 2 2 1 Stock 3 16 23 Stock 4 1 59 Stock 5 2 33 Stock 6 14 23 Stock 7 5 22 Stock 8 20 35 Stock 9 16 25 Stock 10 16 33 Stock 11 9 7 Stock 12 5 8 Stock 13 2 21 Stock 14 8 4 Stock 15 16 26 Stock 16 7 15 Stock 17 4 17 Stock 18 19 29 Stock 19 5 6 Stock 20 15 30 Stock 21 4 13 Stock 22 2 18 Stock 23 19 38 Stock 24 17 27 Stock 25 6 25 Stock 26 3 33 Stock 27 9 Stock 28 10 9 Stock 29 3 36 Stock 30 11 25