BESC STATS Post Test Chp 4 Questions and Answers | Latest Update | Graded A+
3 views 0 purchase
Module
BESC STATS Post
Institution
BESC STATS Post
BESC STATS Post Test Chp 4 Questions
and Answers | Latest Update | Graded
A+
What is the main purpose of probability in statistics?
Probability helps us quantify the likelihood of different outcomes, which is essential for
making predictions and understanding patterns in data.
What is a...
BESC STATS Post Test Chp 4 Questions
and Answers | Latest Update | Graded
A+
What is the main purpose of probability in statistics?
✔✔Probability helps us quantify the likelihood of different outcomes, which is essential for
making predictions and understanding patterns in data.
What is a probability distribution?
✔✔A probability distribution shows the possible values of a random variable and their
associated probabilities, describing how likely each outcome is.
How is a discrete probability distribution different from a continuous one?
✔✔A discrete probability distribution deals with outcomes that can be counted, like rolling a die,
while a continuous distribution involves outcomes in a range, like measuring height.
Explain the concept of expected value.
✔✔Expected value is the long-term average outcome of a random variable, calculated by
summing each possible outcome weighted by its probability.
1
, What does it mean for events to be independent?
✔✔Independent events have no effect on each other's occurrence; knowing one event happened
does not change the probability of the other happening.
What is conditional probability?
✔✔Conditional probability is the probability of an event occurring given that another event has
already happened.
What is the difference between mutually exclusive and independent events?
✔✔Mutually exclusive events cannot happen at the same time, while independent events can
happen together but don’t influence each other.
What is the purpose of using a binomial distribution?
✔✔A binomial distribution models the probability of a specific number of successes in a fixed
number of independent trials, useful for yes/no outcomes like coin tosses.
What is a cumulative probability?
✔✔Cumulative probability is the probability that a random variable is less than or equal to a
certain value, summing up all probabilities up to that point.
2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller SterlingScores. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.49. You're not tied to anything after your purchase.
