what is the probability of an event that is certain?
what is the probability of an event that is certain?
Answer
Answer:
1
Explanation:
Step1: Recall probability range
The probability of an event $P(E)$ lies in the range $0\leq P(E)\leq1$.
Step2: Define certain event
A certain - event is one that is guaranteed to happen.
Step3: Determine probability
By the definition of probability, if an event is certain, the number of favorable outcomes is equal to the total number of outcomes. So $P = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}=1$.