Probability Questions & Answers

A Sra. Amélia vai selecionar aleatoriamente um aluno da sua classe para ler um poema em voz alta. Há 15 meninos e 13 meninas em sua classe. Qual é P(menino)? Se necessário, arredonde sua resposta para 2 casas decimais.

Gregório tem um MP3 player chamado Jumble. O Jumble seleciona aleatoriamente uma música para o usuário ouvir. O Jumble de Gregório contém 6 músicas clássicas, 7 rocks e 9 raps. Qual é P(não é um rap)? Se necessário, arredonde sua resposta para 2 casas decimais.

Gregório tem um MP3 player chamado Jumble. O Jumble seleciona aleatoriamente uma música para o usuário ouvir. O Jumble de Gregório contém 6 músicas clássicas, 7 rocks e 9 raps. Qual é P(não é um rap)? Se necessário, arredonde sua resposta para 2 casas decimais.

Joel tem um MP3 player chamado Jumble. O Jumble seleciona aleatoriamente uma música para o usuário ouvir. O Jumble de Joel contém 2 músicas clássicas, 13 rocks e 5 raps. Qual é P(rock ou rap)? Se necessário, arredonde sua resposta para 2 casas decimais.

1) Calcule a Análise combinatória: a) \( P 6!+A 8,10 \) b) \( P 2,3-A 7,3 \) c) \( P 7+A 12,6 \) d) \( A 11-P 7 \) e) \( P 12-A 9,3 \) f) \( C 9,4+C 15,10 \)

1) Calcule a Análise combinatória: a) \( P 6!+A 8,10 \) b) \( P 2,3-A 7,3 \) c) \( P 7+A 12,6 \) d) \( \mathrm{A} 11-\mathrm{P} 7 \) e) \( P 12-\mathrm{A} 9,3 \) f) \( \mathrm{C9,4}+\mathrm{C} 15,10 \)

experiment? The following questions refer to a very popular Sumner-Sumner dice game in which each player rolls two dice simultaneously and we are interested in the sum of the dice's results each time. Is this a stochastic or deterministic experiment? What is its sample space?

Question 7 [4 marks] The job of a chef culinary artist involves more than simply cooking food; it is about crafting an entire sensory experience where the five senses in human perception is in use. If a chef culinary artist's most used sense is Sight, the probability of that chef's clients' dining experience being of high quality is \( 71 \% \). If a chef culinary artist's most used sense is Hearing, the probability of the dining experience being of high quality is \( 23 \% \). If the most used sense is Smell, the probability of the dining experience being of high quality is \( 43 \% \); however, if the most used sense is Taste, the probability of the high-quality dining experience is \( 89 \% \). If the most used sense of the chef culinary artist is Touch, the likelihood of the high-quality dining experience is only \( 17 \% \). Of a batch of chef culinary artists, a survey revèaled that the most used sense was Sight for \( 17 \% \) of them, Hearing for \( 2 \% \) of them, Smell for \( 31 \% \), Taste for \( 39 \% \), and Touch for \( 11 \% \) of them. i. A chef culinary artist is selected from the batch to manage the dining experience of some clients. Given that the chef's clients' dining experience is of high quality, what is the probability that the most used sense of the chef culinary artist was Sight or Taste?

\begin{tabular}{l} 107. A drawer contains 6 black socks - 4 brown and 2 gre Suppose we pull a sock from the \\ \( \left\lvert\, \)\begin{tabular}{l|l|} drawer and note its color. What is the sample space for the above experiment? If the drawer \\ contains 1 black, 1 brown, and 1 green sock, what is the sample space now? What do you \\ \hline\end{tabular}\right. \\ \hline\end{tabular}

On considère les événements suivants: I: « le client achète son billet sur internet ». A: « le client réserve un audioguide ». On choisit au hasard un client du musée. 1. Représenter la situation à l'aide d'un arbre pondéré. 2. Démontrer que la probabilité de l'événement : « le client choisit une visite avec un audioguide " est égale à 0,41 . 3. On s'intéresse aux clients qui visitent le musée avec un audioguide. Si plus de la moitié d'entre eux ont acheté leur billet sur Internet, alors le directeur proposera à l'avenir la location de l'audioguide sur le site Internet du musée. D'après les résultats de cette étude, que va décider le directeur ? Justifier.