Math Easy As π

 if A and B ARE mutually exclusive then the events cannot occur at the same time Then there is no intersection Since they cannot both o...

Here's a few things to remember Z scores for proportion (p^ - p)/square root(p*(1-p)/n) Z for difference of two proportion (p1^ - ...

Solving for the half life is easy. Suppose A(t) = Ao*e^(-4t) To find the half life, let A(t) = (1/2)Ao (1/2)Ao = Ao*e^(-4t) 1/2 = e^...

Bayes Theorem P(B/A)=P(A and B)/P(A) but from Bayes Theorem we have P(B/A) = P(A/B)*P(B)/P(A) in our problem let A = identify correctly...

 First we must see if np >10 and n(1-p)> 10 Also the sampling method must be a simple random sample, with only two possible outcome...

The sample data distribution tends to resemble the population distribution more closely than the sampling distribution. A random sample of ...

The price ceiling which is the highest the price can be is lower than the price equilibrium, so when the price is $5, you see the supply is...