Dates on which a president has died (would resolve as "YES"):

• January 5

• January 6

• January 17

• January 18

• January 22

• February 3

• February 23

• March 8

• March 13

• March 28

• April 4

• April 12

• April 15

• April 22

• June 1

• June 5

• June 8

• June 15

• June 24

• June 28

• July 4

• July 9

• July 23

• July 24

• July 31

• August 2

• September 14

• September 19

• October 8

• October 20

• November 18

• November 22

• November 30

• December 14

• December 26

37 (of 365 if we assume he won't make it to next leap year) = 10.1%

Month Distribution:

If another living president dies before Carter, their death date will be added. If Jimmy Carter dies on the same exact day as another president (but later on in the day) it will still resolve as "YES".