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1 answer:
Mathematics majors
Computer science majors
We need to use product rule because the first event is picking the mathematics major and second event is picking the computer science major
We need to use sum rule because the first event is picking OR mathematics major and second event is picking the computer science major
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- The universe of mathematics is all around us.
- Mathematical ideas, theories, and formulae have a wide range of practical applications.
- We must master the formulae and principles in order to solve diverse difficulties. To comprehend its many uses and relevance, it is crucial to grasp this subject.
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Answer:
a) 0.778
b) 0.9222
c) 0.6826
d) 0.3174
e) 2 drivers
Step-by-step explanation:
Given:
Sample size, n = 5
P = 40% = 0.4
a) Probability that none of the drivers shows evidence of intoxication.
b) Probability that at least one of the drivers shows evidence of intoxication would be:
P(X ≥ 1) = 1 - P(X < 1)
c) The probability that at most two of the drivers show evidence of intoxication.
P(x≤2) = P(X = 0) + P(X = 1) + P(X = 2)
d) Probability that more than two of the drivers show evidence of intoxication.
P(x>2) = 1 - P(X ≤ 2)
e) Expected number of intoxicated drivers.
To find this, use:
Sample size multiplied by sample proportion
n * p
= 5 * 0.40
= 2
Expected number of intoxicated drivers would be 2