Answer:
recurrence interval is 1.114 inches / hr
Step-by-step explanation:
given data 
rain fall = 5.72 inches
time = 5 hours
to find out
recurrence interval
solution
we will apply here formula for recurrence interval of storm that is express as 
recurrence interval = 
 ...........................1
 ...........................1
here R is rainfall and t is time period 
so put here value we get 
recurrence interval = 
 
 
recurrence interval = 1.114 inches / hr
so recurrence interval is 1.114 inches / hr