S2 Binomial Distribution
This helps to remember key points about the binomial distribution with a couple of practice questions. Most is given in the formula book.
- Created by: Sarah
- Created on: 11-10-12 14:58
Other questions in this quiz
2. X~B(5, 0.2). What is P(X=2)
- 0.2277
- 0.2048
- 0.2148
3. A binomial distribution has a mean of 20 and a standard deviation of 2. What are the values of n and p?
- n=24, p=0.85
- n=25 p=0.8
- n=22 p=0.9
4. How do you calculate the expectation of a binomial distribution?
- E(X)=np
- E(X)=n+p
- E(X)=np-(1-p)
5. What must be the case for the distribution to be modelled binomially?
- Set number of trials, outcome is either success or failure, outcomes are independent of each other, probability of success is constant.
- Data is continuous, mean and standard deviation are the same
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