P(a) = 0.50, p(b) = 0.30, and p(a and b) = 0.15. what is p(a or b)?

P(A or B) = P(A) + P(B) - P(A and B)

P(A or B) = 0.5 + 0.3 - 0.15

P(A or B) = 0.80 - 0.15

P(A or B) = 0.65

The answer is B.

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720