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22-02-2021
Mathematics

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There is a bag filled with 3 blue and 5 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is not replaced.
Another marble is taken at random.
What is the probability of getting 2 reds?

Multiple event probability 364 - Conditional probability (1) Quiz

Respuesta :

alexandrahidalgo81 alexandrahidalgo81

22-02-2021

Answer:

4/7

Step-by-step explanation:

The first time, the probability is 5/8. Then you remove one marble that is red (if you get a red one), so the probability is 4/7.

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