What is meant by "Probability?" Discuss how addition and multiplication are

  • Thread starter Thread starter Perrylady
  • Start date Start date
P

Perrylady

Guest
used for probability. ? Develop a hypothetical table of data using a grid of 3 rows and four columns (label the rows and columns as you see fit.
 
Probability is the likelihood of an event happening (or not happening). Generally multiplication would be used when calculating the probability of event A and event B happening, while addition would be used to calculate the probability of event A or event B happening.

For example, the probability of rolling a die and getting a six is 1/6. The probability of rolling two dice and getting two sixes is 1/6 x 1/6, or 1/36.

But the probability of rolling a die and getting either a five or a six can be calculated as 1/6 + 1/6 or 1/3.
 
Back
Top