h*******e
发帖数: 171 | 1 A certain roller coaster has 3 cars, and a passenger is equally likely to
ride in any 1 of the 3 cars each time that passenger rides the roller
coaster. If a certain passenger is to ride the roller coaster 3 times, what
is the probability that the passenger will ride in each of the 3 cars?
A. 0
B. 1/9
C. 2/9
D. 1/3
E. 1 | G******y
发帖数: 1831 | 2 C: 6/27 = 2/9
6=3！，27=3^3
what
【在 h*******e 的大作中提到】
: A certain roller coaster has 3 cars, and a passenger is equally likely to
: ride in any 1 of the 3 cars each time that passenger rides the roller
: coaster. If a certain passenger is to ride the roller coaster 3 times, what
: is the probability that the passenger will ride in each of the 3 cars?
: A. 0
: B. 1/9
: C. 2/9
: D. 1/3
: E. 1
| h*******e
发帖数: 171 | 3 Thanks.
【在 G******y 的大作中提到】
: C: 6/27 = 2/9
: 6=3！，27=3^3
:
: what
|
|
