Answer
a. P(3) = 0.15,
b. $P(x\leq2)$ = P(0 or 1 or 2) = P(0)+P(1)+P(2) = 0.11+0.19+0.18 = 0.48
c. $P(x\geq4)$ = P(4 or 5 or 6 ) = P(4) + P(5)+ P(6) = 0.12+0.09+0.06 = 0.27
d. $P(1\leq x \leq4)$ = P(1 or 2 or 3 or 4) = P(1)+P(2)+P(3)+P(4) = 0.19+0.28+0.15+0.12 = 0.74
e. $P(x\lt4)$ = P(0 or 1 or 2 or 3 ) = P(0)+P(1)+P(2)+P(3) = 0.11+0.19+0.28+0.15 = 0.73
f. $P(x\gt2)$ = P(3 or 4 or 5 or 6) = P(3)+P(4)+P(5)+P(6) = 0.15+0.12+0.09+0.06 = 0.42
g. $P(2 \leq x \leq5 )$ = P(2 or 3 or 4 or 5 ) = P(2)+P(3)+P(4)+P(5) = 0.28+0.15+0.12+0.09 = 0.64
Work Step by Step
See above.