Respuesta :
Answer:
0.9 is the required probability.
Step-by-step explanation:
We are given the following in the question:
Percentage of student that have visited the ocean = 70%
[tex]P(O) = 0.7[/tex]
Percentage of student that have visited the Mountains = 55%
[tex]P(M) = 0.55[/tex]
Percentage of student that have visited the Oceans and Mountains = 35%
[tex]P(O\cap M) = 0.35[/tex]
We have to find the probability that a randomly selected student has visited the ocean or the mountains.
We have to evaluate:
[tex]P(O\cup M) = P(O) + P(M) - P(O\cap M)[/tex]
Putting values, we get,
[tex]P(O\cup M) = 0.7 + 0.55 -0.35 = 0.9[/tex]
Thus, 0.9 is the probability that a randomly selected student has visited the ocean or the mountains.
