Probability Distributions

Front

What is a probability distribution?

Back

A probability distribution is a mathematical function that provides the probabilities of occurrence of different possible outcomes in an experiment.

Front

What is the sum of all probabilities in a probability distribution?

Back

1

Front

How do you calculate the probability of an event?

Back

Probability of an event = (Number of favorable outcomes) / (Total number of outcomes).

Front

What is the probability of picking a red or blue marble from a jar containing 2 pink, 6 red, and 4 blue marbles?

Back

5/6

Front

What does a z-score represent in statistics?

Back

A z-score indicates how many standard deviations an element is from the mean.

Front

If μ = 70, σ = 8, and X = 50, what is the z-score?

Back

-2.5

Front

What is the binomial probability formula?

Back

P(X=k) = (n choose k) * p^k * (1-p)^(n-k), where n is the number of trials, k is the number of successes, and p is the probability of success.

Front

What is the probability of at least 2 out of 10 blood donors having Type B blood if 11% of the population has Type B blood?

Back

0.303

Front

What is a discrete probability distribution?

Back

A discrete probability distribution is a probability distribution that shows the probabilities of outcomes with finite values.

Front

What is a continuous probability distribution?

Back

A continuous probability distribution is a probability distribution that shows the probabilities of outcomes within a continuous range.