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Find the probability of each event in each experiment

1. a card is drawn at random from a well-shuffled 52-card deck. Find the probability of each event.

a. A heart

b. A face card

2. A jar contains 12 blue marbles, 6 green marbles, and 10 red marbles.

a. what is the probability that if 2 marbles are selected at random, both are blue.

b. what is the probability that if 2 marbles are selected at random, neither is green

3. A 3 digit ID number consists of numbers 1-9. Repetition in selecting a number for the ID is not allowed.what is the probability of choosing at random a 3-digit ID number consisting of only prime numbers

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by iamlmsanchez

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