Probability using Binomial distribution.
Make use of the Binomial Probability Tables
In a large western university, 15% of the students are graduate students. If a random sample of 20 students is selected, what is the probability that the sample contains:
1. Exactly four graduate students?
2. No graduate students?
3. Accurately twenty graduate students?
4. More than nine graduate students?
5. Less than five graduate students?