Distribution Flashcards
1
Q
How to approximate normal distribution?
A
Mean = n x p
Standard deviation = √np (1-p)
p = probability
n = sample size
2
Q
What are the conditions to approximate normal distribution?
A
- large sample size (>100)
- p close to 0.5
3
Q
When is normal distribution values using exact values and when using +/- 0.5?
A
Use normal values normally
but when normally distributing from binomial approximation then +/- 0.5
