Probability

Prob

100

When flipping a coin 100 times, what is the probability you would land on TAILS?

50%

200

What is the difference between AND versus OR probability?

AND = event that both are satisfied (the overlap)

OR = event that either are satisfied (add each separate, then subtract the overlap)

300

Consider the experiment picking one of 12 months at random. What is the probability you would pick March?

P(March) = 1/12

400

Given 16 males and 13 females go to college, 14 males and 9 females do not go to college. What is the probability males go to college?

P(males|college) = 16 / 52

500

Given 16 males and 13 females go to college, 14 males and 9 females do not go to college. What is the probability of talking to a female given that they do not go to college?

P(F|NC) = 9 / 23

Ability

100

If you spin a spinner # 1 - 5, what is the probability you would land on an odd number?

P(odd) = 3/5 or 60%

200

How do you read P(Negron|math)?

Probability that you have Negron given you take math class?

300

What is the formula for conditional probability?

P(A|B) = P(A and B) / P(B)

400

Given 16 males and 13 females go to college, 14 males and 9 females do not go to college. What is the probability females go to college?

13/52

500

Given 16 males and 13 females go to college, 14 males and 9 females do not go to college. What is the probability of talking to someone who goes to college?

P(C) = 29 / 52

Vocabulary

100

What is an "outcome"?

The result after a trial of an experiment

200

What is the difference between an event and a sample space?

Event = collection of one or more outcomes

Sample space = collection of ALL outcomes

300

What is the difference between a tree diagram and a venn diagram?

Tree diagrams shows all possible outcomes, venn diagram compares at least 2 events.

400

How do you know if events are independent or not?

If P(A|B) = P(A) and P(B|A)=P(B), then A and B are independent.

500

If a standard six sided die is rolled once, what is the probability that the number rolled is iether an even or a multiple of 3?

2/3

Miscellaneous

100

What is Ms. N's favorite color?

Blue

200

What is the difference between P(A) and n(A)?

P(A) = chances of A happening

n(A) = number of outcomes that A occurs

300

What does it mean for probability to be mutually exlusive?

Two or more events or outcomes cannot occur at the same time

400

Given 16 males and 13 females go to college, 14 males and 9 females do not go to college. What is the probability of talking to a male given that they do not go to college?

P(M|NC) = 14/23

500

What do these represent: cirrus, cumulus, stratus, nimbus

Types of clouds

Miscellaneous

100

Which two numbers must all probabilities be between?

0 and 1

200

What does it mean for probability to be mutually non-exlusive?

Both events at least one common outcome

300

What does the number outside of the venn diagram represent?

Represents people who did not fall under either category.

400

Which of the following could not be the probability that event A occurs?

3/5

0.49

1.25

1/2

1.25

500

In a group of 100 people, 42 own a dog and 35 own a cat. If 20 people own both a dog and a cat, what is the probability that a randomly selected person owns a dog, given that they own a cat?

0.57