In a years (since 1900) when the Carribean sea (east of 85w) has 1 or less named storm,the follwing year the Eastcoast has a good chance of a Hurricane hit.Here is a list of the years the Carribean had 1 or less storms,and if the Eastcoast was hit by a hurricane or not...73.1% of the time it does get hit by Hurricane
YEAR    STORMS     FOLLOWING YEAR EASTCOAST HURRICANE
1900            0                  1901-YES------#3 NORTH CAROLINA
1902            1                  1903-YES-----#4 NEW JERSEY
1903            1                  1904-YES-----#2 SOUTH CAROLINA
1907            1                  1908-YES-----#2 NORTH CAROLINA,#3 NORTH CAROLINA
1914            0                  1915-YES-----#1 FLORIDA
1919            1                  1920-YES-----#3 NORTH CAROLINA
1920            0                  1921-YES-----#6 FLORIDA
1923            0                  1924-YES-----#3 NORTH CAROLINA,MASSACHUSETTS
1925            1                  1926-YES-----#1 FLORIDA,#6 FLORIDA
1929            0                  1930-YES(?)--#2 NORTH CAROLINA
1930            1                  1931-NO
1936            0                  1937-NO
1937            0                  1938-YES-----LONG ISLAND
1939            1                  1940-YES-----#3 SOUTH CAROLINA
1940            1                  1941-YES-----#5 FLORIDA
1941            1                  1942-NO
1946            1                  1947-YES-----#4 FLORIDA,#8 SOUTH CAROLINA
1956            1                  1957-NO
1957            0                  1958-YES-----HELENE- NORTH CAROLINA
1959            1                  1960-YES-----DONNA
1960            1                  1961-YES-----ESTHER-CAPE COD
1962            0                  1963-YES-----GINNY-NORTH CAROLINA
1965            0                  1966-NO
1967            1                  1968-YES-----GLADYS-NORTH CAROLINA
1968            1                  1969-YES-----GERDA-MAINE
1972            0                  1973-NO
1973            1                  1974-NO
1975            1                  1976-YES-----BELLE-LONG ISLAND
1976            0                  1977-NO
1977            1                  1978-NO
1982            0                  1983-NO
1983            0                  1984-YES-----DIANE-NORTH CAROLINA
1984            1                  1985-YES-----GLORIA-LONG ISLAND
1985            0                  1986-YES-----CHARLEY-NORTH CAROLINA
1986            1                  1987-YES-----FLOYD-FLORIDA
1990            1                  1991-YES-----BOB-MASSACHUSETTS
1991            1                  1992-YES-----ANDREW-FLORIDA
1992            0                  1993-YES-----EMILY-NORTH CAROLINA
1997            0                  1998-YES-----BONNIE-NORTH CAROLINA
1998            1                  1999-YES-----FLOYD-NORTH CAROLINA
2006            1                  2007-NO

There have been 41 years since 1900 that the carribean Sea has seen 1 or less storms.
73.1% of the time the following year the Eastcoast of the United States gets hit by a Hurricane... 30 out of the 41
70.5% of the time the Eastcoast gets hit by a hurricane .the year after the Carribean Sea has 0 storms...12 out of the 17
75.0% of the time the Eastcoast gets hit by a hurricane .the year after the Carribean Sea has 1 storms...18 out of the 24
compared to 42.6% when the Caribbean has 2 or more storms
So in conclusion,the Eastcoast has a better chance of getting hit by a hurricane when there is less the 2 named storms in the Caribbean the year before