3.29 Assume that the Anniston, Alabama, data in Table 3.1 follow a normal distribution. Use the standard normal distribution in Table B.1 to determine the rain depth that would have a recurrence interval of 100 years. Use the same table to estimate the recurrence interval of the 1988 annual rain of 99 inches.

Year Inches Year Inches Year Inches
2000 48 1992 69 1984 58
1999 49 1991 57 1983 44
1998 55 1990 61 1982 44
1997 98 1989 64 1981 64
1996 43 1988 99 1980 44
1995 53 1987 54 1979 51
1994 56 1986 40 1978 71
1993 47 1985 47