Tema
Q:
Probability involving one die or choosing from n distinct objects
A bag contains seven tiles labeled \( B, C, D, E, F, G \), and \( H \). One tile will be randomly picked.
What is the probability of picking a vowel?
Write your answer as a fraction in simplest form.
Q:
A six-sided die with sides labeled 1 through 6 will be rolled once. Each number is equally likely to be rolled.
What is the probability. of rolling a number greater than 2 ?
Write your answer as a fraction in simplest form.
Q:
1 Para crear una prueba, un profesor tiene un banco de 50 preguntas. Si de ellas
escogerá 20. ¿de cuántas formas puede crear la prueba?
\( =50 \)
\( =20 \)
Q:
Question
A stack of cards contains six RED cards numbered \( 1,2,3,4,5,6 \), five BLUE cards numbered \( 1,2,3,4,5 \),
and four GREEN cards numbered \( 1,2,3,4 \). If a single card is picked at random, what is the probability
that the card has an ODD number?
- Express your answer as a simplified Fraction
Provide your answer below:
Q:
Question
When a coin is tossed three times, what is the probability that all three tosses are heads?
The possible outcomes for the coin tosses are
\( \{H H H, T T T, H T T, H H T, T H H, T T H, H T H, T H T\} \)
- Express your answer as a simplified fraction.
Q:
Question
A professor gives a surprise quiz with one multiple choice question. There are 4 answer possibilities:
B, C, and D. What is the probability that you randomly guess and select the correct answer?
Give your answer as a fraction.
Q:
1. Em uma fábrica de potes de plastico, observou-se no controle de qualidade que 1 em cada 10
potes apresentava algum tipo de defeito. Qual a probabilidade de escolher um pote aleatoria-
mente dessa fábrica e ele não possuir defeito algum?
Q:
Question
You roll a standard die (with the numbers \( \{1,2,3,4,5,6\} \) on its faces). Let \( A \) be the event that you roll
an odd number. What is the probability of the event \( A \) ?
Give your answer as a simplified fraction.
Q:
There are 52 cards in a standard deck of cards, with four suites: hearts, clubs, diamonds and spades.
Each suit has 13 cards: Ace, \( 2,3,4,5,6,7,8,9,10 \), Jack, Queen, King .
Let event \( A \) be choosing a card with 7 out of a standard deck of cards.
Identify the numbers of each of the following. Enter the probability as a fraction:
Provide your answer below:
There are \( \square \) cards in the sample space.
There are \( \square \) cards in event A.
\( \mathrm{P}(\mathrm{A})=\square \), is the probability that you choose a 7 out of the deck of cards.
Q:
Question 2
A bag contains 4 red balls, 3 black balls, and 3 green balls. Two balls are randomly drawn from the bag one
after the other with replacement.
2.1 Construct a tree diagram to represent all possible outcomes of drawing two balls in succession.
Clearly label the branches with the corresponding probabilities.
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