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Probability distribution test

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1: A card is drawn and replaced 3 times from a 52-card deck. Find the probability that:
A: 2 hearts were drawn
b: at least 1 heart was drawn.

2: A box contains 3 red and 2 white marbles. A marble was drawn and replace 3 times. Find the probability that:
A: 1 red was drawn

3: An unprepared student takes a 5-question true and false quiz and guesses every answer. Find the probability that the student will pass the quiz if at least 4 correct answers is the passing grade

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Solution Summary

The expert examines probability distribution tests. The unprepared students probability is determined.

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1: A card is drawn and replaced 3 times from a 52-card deck. Find the probability that:
A: 2 hearts were drawn b: at least 1 heart was drawn.

=3C2 X (.25)^2 X (.75)^1 [ probability of drawing a heart is ...

Solution provided by:
Gaurav Agarwal, MS
Education
  • BE, Bangalore University, India
  • MS, University of Wisconsin-Madison
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