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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脳512+13脳512P(Bluebead)=1036+536=1536

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