Statistics homework

[bree102385]

Round your answers to 4 decimal places. Please show all work.

Eighty percent of the students at Podunk College (enrollment 3000) live on campus:

1, If a simple random sample of 10 students is obtained, what is the probability that less than half of them live in campus?

2. If a simple random sample of 100 students is obtained, what is the probability that at least 75 of them live on campus?

3. If a simple random sample of 500 students is obtained, what is the probability that more than 75% of them live on campus?

 

[mmm4444bot]

What have you done, so far, on these exercises?

I mean, where are you stuck?

 

[bree102385]

I am stuck on the set up of all these problems