Question

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?

Answer 1

15.6% right?

Answer 2

Well, no, but how did you get that?

Answer 3

i don't know how to solve it, my mom told me that was the right answer.

Answer 4

That's not the best way to solve problems :)

OK, if it's 1/2 on 1 day, what's the chance she'll be on time 2 days in a row?

Answer 5

1/4?

Answer 6

Yes! How about 3 days in a row?

Answer 7

oh you could just solve (1/2)^5

Answer 8

ok i think i get it. would it be 1/32 or 3.1%

Answer 9

That is correct.

Answer 10

tnx