• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 139
  • Last Modified:

Probability Calculation

Can you tell me if my calculations are right?  Thanks.

Three events occur with probabilities P(E1)=0.38​, P(E2)=0.14​, and P(E3)=0.51. If the event B​ occurs, the probability becomes P(E1|B)=0.26​, P(B)=0.33. Complete parts a through c.

a. Calculate P(E1 and B).  ==> 0.38 + 0.26

b. Compute P(E1 or B). 0.38 - 0.33

c. Assume that E1​, E2​, and E3 are independent events. Calculate P(E1 and E2 and E3). --> 0.38 + 0.14 + 0.51
1 Solution
no, all 3 are wrong

for "and"  you multiply probabilities

for "or" you add probabilities
mustish1Author Commented:
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now