EOC Flashcard #4 A2B

Front

What is the probability of rolling a 3 or a 4 on a fair 6-sided die?

Back

P(3 υ 4) = \frac{2}{6} = \frac{1}{3}.

Front

What is the probability of landing on a number greater than or equal to 6 on a fair 6-sided die?

Back

P(\text{number} \geq 6) = \frac{1}{6} + \frac{1}{6} = \frac{2}{6} = \frac{1}{3}.

Front

What is a convenience sample?

Back

A convenience sample is a type of non-probability sampling where the sample is taken from a group that is easy to reach.

Front

What is a biased sample?

Back

A biased sample is one that does not accurately represent the population from which it is drawn.

Front

What is the formula for conditional probability?

Back

P(A|B) = \frac{P(A \cap B)}{P(B)}.

Front

What is the probability that a female is chosen given they like a Toyota?

Back

P(\text{Female | Likes Toyota}) = 0.6774.

Front

What is the definition of a volunteer sample?

Back

A volunteer sample consists of individuals who self-select into a survey or study.

Front

What is the formula for finding the percentage of a subset?

Back

Percentage = \frac{\text{Part}}{\text{Whole}} \times 100.

Front

If 25% of a class passed both tests and 42% passed the first test, how do you find the percentage of those who passed the second test?

Back

Use the formula: P(\text{Passed Second | Passed First}) = \frac{P(\text{Passed Both})}{P(\text{Passed First})}.

Front

What is the probability of an event?

Back

The probability of an event is a measure of the likelihood that the event will occur, ranging from 0 (impossible) to 1 (certain).