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Setler79 [48]
3 years ago
12

This table shows the relationship between the age of a used car and its price. Which statement best explains whether or not the

relationship is a function? Question 3 options: The relationship is a function of age since two ages are the same. The relationship is not a function of age since two ages are the same The relationship is a function of age since two prices are the same. The relationship is not a function of age since two prices are the sam
Mathematics
1 answer:
skad [1K]3 years ago
3 0
Its not a function because there are two ages that are the same.
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Gnom [1K]

Answer:

0.0135 = 1.35% probability that, in a random sample of 4 visitors to the website, exactly 2 actually are looking for the website.

Step-by-step explanation:

For each visitor of the website, there are only two possible outcomes. Either they are looking for the website, or they are not. The probability of a customer being looking for the website is independent of other customers. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

5% of all visitors to the website are looking for other websites.

So 100 - 5 = 95% are looking for the website, which means that p = 0.95

Find the probability that, in a random sample of 4 visitors to the website, exactly 2 actually are looking for the website.

This is P(X = 2) when n = 4. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = x) = C_{4,2}.(0.95)^{2}.(0.05)^{2} = 0.0135

0.0135 = 1.35% probability that, in a random sample of 4 visitors to the website, exactly 2 actually are looking for the website.

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2 years ago
Tyrell bought a pair of jeans for $23.99. With sales tax, the total was $25.67. What was the amount of the sales tax?
Tanzania [10]

Answer:

1.68

Step-by-step explanation:

8 0
3 years ago
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Answer: B
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gavmur [86]

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68/35 hope this helps

Step-by-step explanation:

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Mrs. Johnson has 159 chickens that she puts in shelters at night to keep safe. She places 12 chickens in a shelter and continues
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3

Step-by-step explanation:

159-12=147-12=... keep going until you get to

15-12=3

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