Module 1 Exercise 1

Let the probability experiment be determining a person's blood type (A, B, AB, O) and Rh-factor (positive, negative).

What is the sample space S of this probability experiment?

• S = {A+, A-, B+, B-, AB+, AB-, O+, O-}

• S = {A, B, AB, O, +, -}

• S = {blood type, Rh-factor}

• S = {A, B, AB, O}

Let the probability experiment be determining a person's blood type (A, B, AB, O) and Rh-factor (positive, negative).

Let the event E be selecting a person with a positive RH-factor.

How many elements does Event E have?

• 4

• 1

• 5

• 2

Let the probability experiment be determining a person's blood type (A, B, AB, O) and Rh-factor (positive, negative).

Let the event E be selecting a person with a positive RH-factor.

What is the probability of selecting a person with a positive Rh-factor?

• $\frac{1}{2}$

• $\frac{1}{4}$
  

• $\frac{1}{3}$

• $\frac{5}{6}$

A probability experiment consists of tossing a coin (Heads = H, Tails = T), and then rolling a 6-sided die.

Which of the following is a possible outcome of the sample space? (Check all that apply).

• H1

• T2

• H5

• HH

• T7

A probability experiment consists of tossing a coin (Heads = H, Tails = T), and then rolling a 6-sided die.

How many outcomes are there in the sample space?

You roll a 12-sided die. Event B is rolling a composite number.

Which of the following is an element of Event B? (Check all that apply).

• 4

• 9

• 12

• 2

• 5

You roll a 12-sided die. Event B is rolling a composite number.

How many elements does Event B have?

You select a card from a standard deck of 52 cards.

A standard deck has the following:

a. 4 suits: hearts, diamonds, spades, clubs

b. each suit has 13 cards: 2 to 10, jack, queen, king, ace

What is the probability of selecting a heart? Type your answer in decimal form. Do not round off.

The table shows the results of a study in which researchers examined a child's IQ and the presence of a specific gene in the child. Find the probability that a child does not have the gene.

• $\frac{30}{102}$

• $\frac{39}{72}$

• $\frac{19}{30}$

• $\frac{11}{50}$

The table shows the results of a study in which researchers examined a child's IQ and the presence of a specific gene in the child. If a child has the gene, find the probability that the child has a high IQ.

•  $\frac{33}{72}$ 

• $\frac{39}{72}$

•  $\frac{72}{102}$ 

•  $\frac{30}{102}$