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Chapter 3: Q. 115 (page 230)

Find P(Blue bead).

a. 1536

b. 1036

c. 1012

d. 636

Short Answer

Expert verified

a.1536

Step by step solution

01

Given information

This tree diagram shows the tossing of an unfair coin followed by drawing one bead from a cup containing three red (R), four yellow (Y) and five blue (B) beads.

02

Explanation

Probability of Blue bead:

P(Bluebead)=P(HeadANDBluebeadinhead)+P(TailANDBluebeadintail)P(Bluebead)=P(Head).P(Bluebeadinhead)+P(Tail).P(Bluebeadintail)P(Bluebead)=23×512+13×512P(Bluebead)=1036+536=1536

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Most popular questions from this chapter

The graph in Figure 3.11displayed concerning their approval of Mayor Ford’s actions in office. The total number in the sample of all the age groups is 1.045.

a. Define three events in the graph.

b. Describe in words what the entry 40means.

c. Describe in words the complement of the entry in question 2.

d. Describe in words what the entry 30means.

e. Out of the males and females, what percent are males?

f. Out of the females, what percent disapprove of Mayor Ford?

g. Out of all the age groups, what percent approve of Mayor Ford?

h. Find P(Approve| Male).

i. Out of the age groups, what percent are more than 44years old?

j. Find P(Approve| Age < 35).

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