Question

Help please...
A survey of high school juniors found that 82% of students plan on attending college. If you pick three students at random, what is the probability that at least two plan on attending college? Round to the nearest percent.

36%
91%
45%
9%

Answer 1

you doin e2020
?

Answer 2

I guess it would be 91% if calculated right xD

Answer 3

91.45 To be exactly right

Answer 4

How do you figure that, @Camtron ?

Answer 5

I don't know exactly how to explain it to you :/

Answer 6

How'd you solve?

Answer 7

haha

Answer 8

do you know any other answer?

Answer 9

well there you go xD

Answer 10

haha Thanks! That makes sense... haha

Answer 11

>.> Where did the response go?

Answer 12

P(at least 2) is P(2) + P(3)

P(2) = (3C2)(1 - 0.82)(0.82)^2 = 0.363096

P(3) = (0.82)^3 = 0.551368

P(at least 2) = 0.363096 + 0.551368 = 0.914464

Answer 13

So, rounded, that's 91%

Answer 14

Ahhhhh OK! I got it. I see where I messed up. lol I put 36% as the answer.

Answer 15

Thanks so much!

Answer 16

uw! Good luck to you in all of your studies and thx for the recognition! @Peasant1