lesson 5 - normal approximation Flashcards
1
Q
how do we calculate Standard deviation
A
Standard deviation can be calculated by 𝜎=√(npq)
2
Q
what is the condition for normal approximation
A
Condition for normal approximation = If X is a binomial random variable of n independent trials, each with probability of success p, and if np>5 and nq>5. This lets the binomial random variable be approximated by a normal distribution.
