Answer
a) T
b) F
c) F
d) T
Work Step by Step
The truth value for the yes or no statement "the word $x$ contains the letter $a$" is either 1 or 0 for $P(x)$, depending on the presence of the letter $a$.
a) P(orange)=1
b) P(lemon)=0
c) P(true)=0
d) P(false)=1