At a local university, when scheduling classes, the probability that there are no evening classes available on a certain day is 0.80. what is that probability that there is at least one evening class available on that day?
Write one a number as your answer. Round to two decimal places (for example: 0.73). Do not write as a percentage.
To find the probability that there is at least one evening class available, we need to subtract the probability that there are no evening classes from 1.
Given that the probability of no evening classes is 0.80, we can calculate the probability of at least one evening class using the formula:
Probability of at least one event = 1 - Probability of no event
Therefore, the probability of at least one evening class available on that day is:
1 - 0.80 = 0.20
Rounded to two decimal places, the answer is 0.20.
The probability that there are no evening classes available on a certain day is 0.80. Therefore, the probability that there is at least one evening class available on that day can be found by subtracting the probability of having no evening classes from 1.
So, 1 - 0.80 = 0.20
Therefore, the probability that there is at least one evening class available on that day is 0.20.