The probability that Shania is on time for school is 1/2. Find the probability that Shania arrives on time for school for the next 5 days. Express your answer as a percent, to the nearest tenth of a percent.
A. 50%
B. 15.6%
C. 11.4%
D. 3.1%
I feel like its obvious but is it D???
i think so lovelycaity
To find the probability that Shania arrives on time for school for the next 5 days, you need to calculate the probability of her being on time each day and then multiply those probabilities together.
Given that the probability of Shania being on time for one day is 1/2, you can say that the probability of her being late for one day is also 1/2.
To find the probability of her being on time for the next 5 days, you need to multiply the probabilities together:
(1/2) * (1/2) * (1/2) * (1/2) * (1/2) = 1/32 or approximately 0.03125.
To express the answer as a percent, you multiply by 100:
0.03125 * 100 = 3.125%.
Rounding to the nearest tenth, the probability that Shania arrives on time for school for the next 5 days is approximately 3.1%.
So, the correct answer is D. 3.1%.