A box contains
In 8 such selections, where
Probability, MET1 2017 VCAA 5
For Jac to log on to a computer successfully, Jac must type the correct password. Unfortunately, Jac has forgotten the password. If Jac types the wrong password, Jac can make another attempt. The probability of success on any attempt is
- What is the probability that Jac does not log on to the computer successfully? (1 mark)
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- Calculate the probability that Jac logs on to the computer successfully. Express your answer in the form
, where and are positive integers. (1 mark)
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- Calculate the probability that Jac logs on to the computer successfully on the second or on the third attempt. Express your answer in the form
, where and are positive integers. (2 marks)
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Probability, MET2 2015 VCAA 12 MC
A box contains five red balls and three blue balls. John selects three balls from the box, without replacing them.
The probability that at least one of the balls that John selected is red is
Probability, MET2 2014 VCAA 22 MC
John and Rebecca are playing darts. The result of each of their throws is independent of the result of any other throw. The probability that John hits the bullseye with a single throw is
The ratio of the probability of Rebecca hitting the bullseye at least once to the probability of John hitting the bullseye at least once is
Probability, MET2 2012 VCAA 20 MC
A discrete random variable