Addition Rule for Mutually Exclusive Events
When do we use the addition rule?
If we want to calculate the probability of event A occurring or event B occurring, taking into account that they are mutually exclusive, we use the addition rule.
Formula:
P(A or B) = P(A) + P(B), where
P(A or B)- the probability of event A occurring or event B occurring,P(A)- the probability of event A occurringP(B)- the probability of event B occurring
Task example:
The basket has 12 green balls, 30 red balls, and 18 yellow balls. What is the probability of taking a green or red ball?
P(green)= 12/60 = 0.2 = 20%P(red)= 30/60 = 0.5 = 50%P(green or red)= P(green) + P(red) = 20% + 50% = 70%.
Tack för dina kommentarer!
Fråga AI
Fråga AI
Fråga vad du vill eller prova någon av de föreslagna frågorna för att starta vårt samtal
Awesome!
Completion rate improved to 3.7Addition Rule for Mutually Exclusive Events
Svep för att visa menyn
When do we use the addition rule?
If we want to calculate the probability of event A occurring or event B occurring, taking into account that they are mutually exclusive, we use the addition rule.
Formula:
P(A or B) = P(A) + P(B), where
P(A or B)- the probability of event A occurring or event B occurring,P(A)- the probability of event A occurringP(B)- the probability of event B occurring
Task example:
The basket has 12 green balls, 30 red balls, and 18 yellow balls. What is the probability of taking a green or red ball?
P(green)= 12/60 = 0.2 = 20%P(red)= 30/60 = 0.5 = 50%P(green or red)= P(green) + P(red) = 20% + 50% = 70%.
Tack för dina kommentarer!
