Stats Flashcards
1
Q
What percentage of the data is within 1 standard deviation of the mean in normal distribution?
A
68%
2
Q
What percentage of the data is within 2 standard deviations of the mean in normal distribution?
A
95%
3
Q
What percentage of the data is within 3 standard deviations of the mean in normal distribution?
A
99.7%
4
Q
How to find the normal mean fron binomial values?
A
Mu = n × p
5
Q
How to find the normal variance from binomial values?
A
N × p × (1-p)
6
Q
How do you find the normal distribution of the mean for a variable X, given its normal distribution is defined as X ~ n(mu, sigma^2)?
A
X ~ n(mu, (sigma)/sqrt(n)^2)
7
Q
What is the formula used to find P(B|A)?
A
P(A AND B)/P(A)
