Rules of Probability correct answers 1. The probability of any event must be between 0 and 1, inclusive. 0 ≤ P(E) ≤ 1.
2. The sum of the probabilities of all outcomes must equal 1.
3. If E and F are disjoint events, then P(E or F) = P(E) + P(F). If E and F are not disjoint events, then P(E or...
Statistics Final || A+ Guaranteed.
Rules of Probability correct answers 1. The probability of any event must be between 0 and 1,
inclusive. 0 ≤ P(E) ≤ 1.
2. The sum of the probabilities of all outcomes must equal 1.
3. If E and F are disjoint events, then P(E or F) = P(E) + P(F). If E and F are not disjoint events,
then P(E or F) = P(E) + P(F) - P(E and F)
4. If E represents any event and Ec represents the complement of E, then P(Ec) = 1 - P(E)
5. If E and F are independent events, then P(E and F) = P(E)∗P(F)
In a probability model, the sum of the probabilities of all outcomes has what value? correct
answers 1
Probabilities using the empirical method. correct answers Look at what has happened in the past
and assume the probability is the same as the relative frequency of that particular outcome.
P(E)=relative frequency of E =
frequency of E/total number of trials
A person spins a six-space spinner. He then draws a playing card and checks its color. Describe
the sample space of possible outcomes. Use 1,2,3,4,5, and 6 for the spinner outcomes. Use B and
R as the color outcomes. correct answers {1b,2B,3B,4B,5B,6B,1R,2R,3R,4R,5R, and 6R}
Probabilities using the classical method correct answers Assume that all outcomes are equally
likely.
P(E)=number of ways E can occur/total number of possible outcomes
Roberto, Marco, Clarice, and John work for a publishing company. The company wants to send
two employees to a statistics conference. To be fair, the company decides that the two
individuals who get to attend will have their names randomly drawn from a hat. Determine the
sample space of the experiment. That is, list all possible simple random samples of size n=2.
correct answers {RM,RC,RJ,MC,MJ,CJ}
Subjective Probability correct answers Obtained on the basis of personal judgement
Determine whether the following probability is computed using the classical method, the
empirical method, the subjective method, or none of these. The probability of having six girls in
a six-child family is 0.015625 correct answers Classical Method
Addition Rule for Disjoint Events correct answers If E and F are disjoint (no outcomes in
common) events, then
P(E or F)=P(E) + P(F)
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 or Stuvia-credit 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 FullyFocus. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.38. You're not tied to anything after your purchase.
