Annual precipitation values at a place having 70 years of record can be tabulated as follows: FOR Range (cm) <60.0 60.0-79.9 80.0 99.9 100,0-119.9

Annual precipitation values at a place having 70 years of record can be tabulated as follows: FOR Range (cm) 140.0 Number of years 6 6 22 25 8 3 RING Calculate the probability of having: (a) an annual rainfall equal to or larger than 120 cm, (b) two successive years in which the annual rainfall is equal to or greater than 140 cm. (c) an annual rainfall less than 60 cm.