If 40% of all commuters ride to work in carpools, find the probability that if 8

Question

If 40% of all commuters ride to work in carpools, find the probability that if 8 workers are selected 5 will ride in a carpool. (hint: binomial probability).

Okay, here's the equation I set up:

I put:

n=8

p=0.4

x=5

Then I get 1.935 something, which is wrong bc probability is less than 1...

RIGHT? What am I doing WRONG? Please help!!!!!!!!!!!!!

I gotta solve this problem ASAP,

id very much appreciate it if you could SHOW me what i did wrong and show the equation, how to solve it... THANKS!!!!!!!!!!!!!!!!!!!!!!

Explanation / Answer

Oh I actually got this never mind. it's (8 5)(0.4)^5(1-0.4)^8-5, so you get 0.120

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects