Probability Test 3 Fall 2024

Front

What is the probability that Mary passes her test given that she doesn't study?

Back

.36

Front

What is the experimental probability of getting heads when flipping a coin 40 times and getting heads 11 times?

Back

11/40

Front

What is the theoretical probability of getting heads on a fair coin?

Back

1/2

Front

What is the difference between permutation and combination?

Back

Permutation considers the order of selection, while combination does not.

Front

What is the formula for calculating the probability of an event?

Back

P(E) = Number of favorable outcomes / Total number of outcomes

Front

If the probability of an event A is 0.3, what is the probability of the event not occurring?

Back

P(not A) = 1 - P(A) = 0.7

Front

What is conditional probability?

Back

The probability of an event occurring given that another event has already occurred.

Front

What is the formula for conditional probability?

Back

P(A|B) = P(A and B) / P(B) where P(A|B) is the probability of A given B.

Front

In a group of 15 people, if 9 are boys and 6 are girls, what is the probability of picking a girl?

Back

P(girl) = 6/15 = 0.4

Front

What is the probability that a randomly selected person speaks Spanish given that they are a girl?

Back

This requires conditional probability and specific data.