Respuesta :
the probability that the selected student has at least one of the three types of cards is :
P(A ∪ B ∪ C) = P(A) + P(B) + P(C) - P(A ∩ B) - P(A ∩ C) - P(B ∩ C) + P(A ∩ B ∩ C)
= 0.6 + 0.4 + 0.2 - 0.3 - 0.12 - 0.1 + 0.07
= 0.75
what is probability?
- The area of mathematics known as probability deals with numerical representations of how likely it is for an event to happen or for a claim to be true.
- A number between 0 and 1 is the probability of an occurrence, where, broadly speaking, 0 denotes the event's impossibility and 1 denotes its certainty.
- The likelihood of an event occurring increases as its probability increases.
- A fair coin toss serves as an illustration.
- The chance of "heads" and "tails" being equal since the coin is fair, the two outcomes are equally likely, and since there are no other conceivable possibilities, the probability of either outcome is 1/2 (also known as 0.5 or 50%).
To know more about probability, refer to the following link:
https://brainly.com/question/13335261
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