# problem involving probabilty

• January 18th 2010, 10:46 AM
myoplex11
problem involving probabilty
Along a highway there are 6 rest stops. mike is just as likely to stop at any of the rest stops as he is to pass by it. Find the theoretical probability that mike will stop at 2 or more of the rest stops.

Can anyone please check my work:
P(x >= 2) = 1 - [P(0) + P(1)]

P(0) = 6C0 (0.5)^0 (0.5)^6 = 1/64

P(1) = 6C1 (0.5)^1(0.5)^5 = 3/3 2

1- (1/64 + 3/32) = 57/64
• January 18th 2010, 11:11 AM
courteous
Seems all right to me.

In future you can use "\choose" command to produce this: $6\choose 0$. (Nod)