AP Stats Ch.5 Quiz Review

Column 1

100

Fill in the blank: 

P(A) = (# of outcomes for A)/(?)

# of outcomes in the sample space

200

Let P(C) = 0.6, P(D) = 0.45, P(C and D) = 0.75. What is P(C or D)?

P(C or D) = 0.3

300

Suppose P(A) = 0.3, P(B) = 0.4, P(A and B) = 0.12. Are A and B independent events?

Yes.

400

We are rolling two dice. What's the probability of a rolling a number that is not a prime number?

P((2,3,5,7,11)^C) = 11/36

Column 2

100

State the General Addition Rule

P(A or B) = P(A) + P(B) - P(A and B)

200

How does the General Multiplication Rule change if A and B are independent?

P(A and B) = P(A) * P(B)

300

Given that A = .54, B = .32, can we find P(A|B)? If so, what is the value? If not, what value do we need?

No, we need P(A and B).

400

The odds of a die rolling to a certain number are

P(1) = 0.3, P(2) = 0.1, P(3) = 0.1, P(4) = 0.1, 

P(5) = 0.1, P(6) = 0.3

If the dice is rolled and is an odd number, what's the probability it is a 1?

P(1|odd) = 0.6