PLease explain for dummies (with examples0 how to determine the total number of observations for the below table?? Not sure I am on the right track.How to determine the sample size??

STATE	CASES	DEATHS	RAND	C19TCP100T =	C19PTDITC =
				Cases/100000	Deaths/Cases*100
FL	672,312	11,074	0.460517	6.72312	1.647151918
FL	763,674	10632	0.5477385	7.63674	1.392217098
AR	6,180	119	0.2666414	0.0618	1.925566343
FL	50,127	2,233	0.8122798	0.50127	4.4546851
FL	7,495	1,005	0.2205964	0.07495	13.40893929
AR	3,372	72	0.8779417	0.03372	2.135231317
AR	7,818	136	0.3575705	0.07818	1.739575339
AR	1,964	42	0.0616168	0.01964	2.138492872
FL	255,955	2753	0.8982257	2.55955	1.075579692
AR	2,909	48	0.9953917	0.02909	1.650051564
FL	46,944	2,052	0.2209795	0.46944	4.371165644
AR	20,257	439	0.4833364	0.20257	2.167152096
AR	349	3	0.0847915	0.00349	0.859598854
FL	42,940	1,917	0.2082662	0.4294	4.464368887
AR	13,606	197	0.7305919	0.13606	1.447890636
FL	80,676	2548	0.2400459	0.80676	3.158312261
	Cash (N)		Deaths (X)	P = X/N	P
FLORIDA	1,920,123		34,214	0.01781865	0.0178
ARKANSAS	56,455		1056	0.018705163	0.1871
TOTAL	1,976,578		35,270	-	-
Total Observations:	?????
1/3 oftot. obs