Exploring Adding and Subtracting Rational Expressions

What is the notation used for conditional probability?

• P(B|A)

• P(A|B)

• P(A or B)

• P(A and B)

What is the formula for conditional probability?

• P(B|A) = P(A and B) / P(A)

• P(A|B) = P(A and B) / P(B)

• P(A|B) = P(A and B) / P(A)

• P(B|A) = P(A and B) / P(B)

In a standard deck of cards, what is the probability of drawing a queen given that the card is red?

• 1/52

• 1/13

• 1/26

• 1/4

How many red cards are there in a standard deck of 52 cards?

• 52

• 39

• 26

• 13

What is the probability of a number being a perfect square given that it is odd?

• 1/10

• 1/2

• 1/5

• 1/20

How many perfect squares are there between 1 and 100?

• 15

• 10

• 5

• 20

In a class of 30 students, how many are athletes and also in the band?

• 6

• 3

• 13

• 9

What is the probability that a student is in the band given they are not an athlete?

• 1/5

• 1/6

• 6/17

• 1/17

What is the joint relative frequency of coach class passengers who did not check any bags?

• 0.1125

• 0.375

• 0.175

• 0.45

What is the probability that a first class passenger checked at least one bag?

• 0.1125

• 0.175

• 0.375

• 0.45