The Normal Distribution Flashcards
0
Q
To find a value greater than a negative eg. P(Z>-1)
A
This is the same as less than the positive eg. P(Z<1)
1
Q
How to standardise:
A
Take away the mean and divide by the square root of the variance
2
Q
A binomial X~B(n,p) can be approximated to a normal if?
A
np > 5 and nq > 5
3
Q
How to approximate a binomial to a normal?
A
If X~B(n,p) then Y~N(np,npq)
4
Q
When approximating a binomial to a normal, what must be applied?
A
A continuity correction of 1/2
