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erastovalidia [21]
2 years ago
11

The graph shows the value of a certain model of car compared with its age. Which statement is false??

Mathematics
2 answers:
ICE Princess25 [194]2 years ago
8 0

We have to find the INCORRECT statement from the given 4 choices.

Since the points of the given scatter plot lie mainly in a straight line we can conclude that there is a strong correlation between the car's value and the car's age.

Since the correlation is strong the the slope is negative, we can conclude that the correlation coefficient is close to -1.

The data does shows a negative linear relationship as the line is falling i.e. slope is negative.

The statement D is false. The explanatory variable is plotted along x-axis. So the variable along x-axis is Car's age in years not Cars value.

So the answer to this question is D.

AleksandrR [38]2 years ago
7 0

Answer:

The correct answer is B

Step-by-step explanation:

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I say that we have two sets:

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The most important information in these kind of problems is the intersection. That is, that he virus enters the system simultaneously by both email and webpage with a probability of 0.17. It means that A \cap B = 0.17.

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The problem states that there is a 40 chance of receiving it through the email. It means that we have the following equation:

A + (A \cap B) = 0.40

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A = 0.23

where A is the probability that the system receives the virus just through the email.

The problem states that there is a 40% chance of receiving it through the email. 23% just through email and 17% by both the email and the webpage.

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There is a 35% chance of receiving it through the webpage. With this information, we have the following equation:

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B + 0.17 = 0.35

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The problem states that there is a 35% chance of receiving it through the webpage. 18% just through the webpage and 17% by both the email and the webpage.

What is the probability that the virus does not enter the system at all?

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- The virus enters the system both by email and by the webpage: 17% = 0.17.

The sum of the probabilities is 100% = 1. So:

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