The probability that none of the four have been vaccinated is
(1-0.63)^4 = 0.01874161
The probability that at least one has been vaccinated is the complement of this,
≈0.9813
I think b because all the other lines are the same length and b lines aren’t
Answer:
15%
Step-by-step explanation:
Set up a proportion.
Cross-multiply.
Divide both sides by 90.
The discounted price is 85% of the regular price so the
discount is 15%.
