In an intensive care unit (ICU), family members of patients can visit at three different times: morning, afternoon, and night. The probability that a patient will have visitors in the morning is 40%, in the afternoon it is 30%, and in the evening it is 30%. If a patient is randomly selected, what is the probability that he or she will have visitors in the afternoon or the night?
To find the probability that a patient will have visitors in the afternoon or the night, we need to add the probabilities of each individual event: P(afternoon) + P(night).
Given that the probability of a patient having visitors in the afternoon is 30% and in the night is also 30%, we can calculate the sum as follows:
P(afternoon or night) = P(afternoon) + P(night) = 30% + 30% = 60%.
Therefore, the probability that a randomly selected patient will have visitors in the afternoon or the night is 60%.
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To find the probability that a patient will have visitors in the afternoon or the night, we need to find the sum of the probabilities of these two events.
The probability of having visitors in the afternoon is 30%, and the probability of having visitors in the evening is also 30%.
Therefore, the probability that a patient will have visitors in the afternoon or the night is:
30% + 30% = 60%
So, the probability that a patient will have visitors in the afternoon or the night is 60%.
To find the probability that a patient will have visitors in the afternoon or the night, we need to calculate the sum of the individual probabilities.
Given:
- Probability of a patient having visitors in the afternoon = 30%
- Probability of a patient having visitors at night = 30%
We'll add these two probabilities together to get the combined probability of having visitors in the afternoon or the night:
P(afternoon or night) = P(afternoon) + P(night)
= 30% + 30%
= 60%
Therefore, the probability that a randomly selected patient will have visitors in the afternoon or the night is 60%.