Traffic Data Revealed That 35 Percent of Automobiles Traveling

James

Guys, does anyone know the answer?

get traffic data revealed that 35 percent of automobiles traveling forth a portion of an interstate highway were exceeding the legal speed limit. using highway cameras and license plate registrations, it was also adamant that 52 per centum of sports cars were also speeding along the same portion of the highway. what is the probability that a randomly selected car forth the aforementioned portion of the highway was a speeding sports motorcar? from EN Bilgi.

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Traffic information revealed that 35 percent of automobiles traveling forth a portion of an interstate highway were exceeding the legal speed limit. Using highway cameras and licence plate registrations, ...

Traffic data revealed that 35 pct of automobiles traveling along a portion of an interstate highway were exceeding the legal speed limit. Using highway cameras and licence plate registrations, information technology was too determined that 52 percent of sport cars were as well speeding along the aforementioned portion of the highway. What is the probability that a randomly selected car forth the aforementioned portion of highway is a speeding sports motorcar?

The answer seems to be .182 rather than "It cannot be determined from the information given. They seem to have gotten .182 from multiplying .35*.52.

But that seems to be just the right respond if the question said that .52 of the speeding cars were sports cars. It may be that sports cars account for only .001 of the cars on the highway. What is the logic behind this adding?

i Reply 1

The calculation is wrong and your comment is right

Your annotate, "it may be that sports cars account for only .001 of the cars on the highway" is right.

Allow A $A$ be the effect that a car is speeding, and let B $B$ be the event that a car is a sports car. We know P ( A ) = .35 $P\left(A\right)=.35$ and P ( A ∣ B ) = .52 $P(A\mid B)=.52$ .

Nosotros want to know the probability that a car is a car AND a sports machine. Past def. provisional probability:

But we do not know P ( B ) $P\left(B\right)$ . We also know that P ( A ) = P ( A ∣ B ) P ( B ) + P ( A ∣ ¬ B ) ( 1 − P ( B ) ) $P\left(A\right)=P(A\mid B)P\left(B\right)+P(A\mid \neg B)(1-P(B\left)\right)$ but nosotros still have ii unknowns but only one equation. The probability of speeding given the car is not a sports automobile must exist consistent with the below equation, but that doesn't nail downwards P(B).

For example, nosotros may accept the probability of a sports motorcar P ( B ) $P\left(B\right)$ is .five and the probability of speeding for non-sports cars is .xviii. Or P ( B ) $P\left(B\right)$ is .001 and the probability of speeding for non-sports cars is .3498.

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Traffic data revealed that 35 percent of automobiles traveling al

Traffic information revealed that 35 percent of automobiles traveling along a portion of an interstate highway were exceeding the legal speed limit. using highway cameras and license plate registrations, information technology was also adamant that 52 percent of sports cars were besides speeding along the aforementioned portion of the highway. what is the probability that a randomly selected car along the same portion of the highway was a speeding sports car?

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Traffic data revealed that 35 pct of automobiles traveling along a portion of an interstate highway were exceeding the legal speed limit. using highway cameras and license plate registrations, it was too determined that 52 percent of sports cars were also speeding along the same portion of the highway. what is the probability that a randomly selected auto along the same portion of the highway was a speeding sports car?

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AP Statistics Review May3 2018

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In a random sample of sixty shoppers chosen from the shoppers at a big mall, 36 indicated that they had been to a movie in the by calendar month. In an independent random sample of 50 shoppers chosen from the shoppers in the downtown shopping area, 31 indicated that they had been to a flick in the past month. What significance test should be used to determine whether these data provide sufficient evidence to reject the hypothesis that the proportion of shoppers at the mall who had been to a movie in the by month is the same equally the proportion of shoppers in the downtown shopping surface area who had been to a movie in the past month?

One proportion z-examination

One sample z-test for a hateful

1 sample t-exam for a mean

Two proportion z-test

Ii sample t-test for means

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