SOLUTION: The city finds empirically that the probability that an automobile going through the intersection of 5th and Main will run a red light sometime during a given day is 8.9%, and the
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Question 1165872: The city finds empirically that the probability that an automobile going through the intersection of 5th and Main will run a red light sometime during a given day is 8.9%, and the probability that an automobile going through the intersection of 7th and Polk will run a red light sometime during a given day is 11.7%. Suppose a car is picked at random at 5th and Main on a given day and another at random at 7th and Polk. Write each probability as a percentage rounded to one decimal place.
What is the probability that neither car runs a red light?
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The city finds empirically that the probability that an automobile going through the intersection
of 5th and Main will run a red light sometime during a given day is 8.9%,
and the probability that an automobile going through the intersection of 7th and Polk
will run a red light sometime during a given day is 11.7%.
Suppose a car is picked at random at 5th and Main on a given day and another at random at 7th and Polk.
Write each probability as a percentage rounded to one decimal place.
What is the probability that neither car runs a red light?
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P = (1-0.089)*(1-0.117) = 0.804413. ANSWER
Solved.
The formula is SELF-EXPLANATORY.
If the meaning of the formula is unclear to you at first sight,
then look in it and hear attentively: it will tell you everything and will explain itself.
