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An experiment consists of rolling a weighted die. The probability of rolling each number is: Pr[1]=0.05Pr[1]=0.05, Pr[2]=0.2Pr[2]=0.2, Pr[3]=0.1Pr[3]=0.1, Pr[4]=0.1Pr[4]=0.1, Pr[5]=0.3Pr[5]=0.3, and Pr[6]=0.25Pr[6]=0.25. On the first roll, you record if the number is Small (1,2,3) or Large (4,5,6). If the first number is Small, then on the second roll you record if the number is a 4 or not. If the first number is Large, on the second roll you record whether the number is Small or not. So, some typical outcomes would be S4 (small number rolled, then 4) or LL (large number rolled, then another large number). Draw a tree diagram and use it to answer the following questions. (1) What is Pr[S4]Pr[S4]?    (2) What is Pr[LL]Pr[LL]?    (3) What is Pr[(not4)onsecondroll|Sonfirstroll]Pr[(not4)onsecondroll|Sonfirstroll]?

An experiment consists of rolling a weighted die. The probability of rolling each number is: Pr[1]=0.05Pr[1]=0.05, Pr[2]=0.2Pr[2]=0.2, Pr[3]=0.1Pr[3]=0.1, Pr[4]=0.1Pr[4]=0.1, Pr[5]=0.3Pr[5]=0.3, and Pr[6]=0.25Pr[6]=0.25. On the first roll, you record if the number is Small (1,2,3) or Large (4,5,6). If the first number is Small, then on the second roll you record if the number is a 4 or not. If the first number is Large, on the second roll you record whether the number is Small or not. So, some typical outcomes would be S4 (small number rolled, then 4) or LL (large number rolled, then another large number). Draw a tree diagram and use it to answer the following questions. (1) What is Pr[S4]Pr[S4]?    (2) What is Pr[LL]Pr[LL]?    (3) What is Pr[(not4)onsecondroll|Sonfirstroll]Pr[(not4)onsecondroll|Sonfirstroll]?

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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An experiment consists of rolling a weighted die. The probability of rolling each number is: Pr[1]=0.05Pr[1]=0.05, Pr[2]=0.2Pr[2]=0.2, Pr[3]=0.1Pr[3]=0.1, Pr[4]=0.1Pr[4]=0.1, Pr[5]=0.3Pr[5]=0.3, and Pr[6]=0.25Pr[6]=0.25. On the first roll, you record if the number is Small (1,2,3) or Large (4,5,6). If the first number is Small, then on the second roll you record if the number is a 4 or not. If the first number is Large, on the second roll you record whether the number is Small or not. So, some typical outcomes would be S4 (small number rolled, then 4) or LL (large number rolled, then another large number). Draw a tree diagram and use it to answer the following questions.

(1) What is Pr[S4]Pr[S4]? 

 


(2) What is Pr[LL]Pr[LL]? 

 


(3) What is Pr[(not4)onsecondroll|Sonfirstroll]Pr[(not4)onsecondroll|Sonfirstroll]? 



(4) What is Pr[Sonsecondroll|Lonfirstroll]Pr[Sonsecondroll|Lonfirstroll]? 

 

 

 

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