Let
and
The value of
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♦ Mean mark 53%.
Probability, MET2 2018 VCAA 12 MC
The discrete random variable
Let
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Probability, MET2 2016 VCAA 7 MC
The number of pets,
If two students are selected at random, the probability that they own the same number of pets is
Probability, MET1 2008 VCAA 7
Jane drives to work each morning and passes through three intersections with traffic lights. The number
- What is the mode of
? (1 mark)
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- Jane drives to work on two consecutive days. What is the probability that the number of traffic lights that are red is the same on both days? (2 marks)
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Probability, MET1 2012 VCAA 4
On any given day, the number
- Find the mean of
. (2 marks)
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- What is the probability that Daniel receives only one telephone call on each of three consecutive days? (1 mark)
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- Daniel receives telephone calls on both Monday and Tuesday.
- What is the probability that Daniel receives a total of four calls over these two days? (3 marks)
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Probability, MET1 2013 VCAA 7
The probability distribution of a discrete random variable,
- Show that
or . (3 marks)
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- Let
.
- Calculate
. (2 marks)
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- Find
. (1 mark)
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- Calculate