Part A

The graph shows the value of a certain model of car compared with it's age. which statement is true?

s2008m [1.1K]

The only true statement is A:

"The data show a negative linear relationship."

<h3></h3><h3>Which statement is true?</h3>

On the graph, we can see how the car's vale decreases almost linearly with the age of the car.

Where the response variable would be the one on the y-axis, which is the car's value.

For that linear behavior, we know that there is a correlation coefficient different than zero. So options B, C, and D are false.

Finally, we already saw the linear behavior (decreasing, so the slope is negative). Then we conclude that the only true statement is A.

If you want to learn more about data sets:

brainly.com/question/4219149

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6 0

1 year ago

Hello pls help besties (o˘◡˘o)

goldenfox [79]

Hello bestie I cannot help you

8 0

2 years ago

Read 2 more answers

The mean finish time for a yearly amateur auto race was 186.32 minutes with a standard deviation of 0.305 minute. The winning c

uranmaximum [27]

Complete Question

The mean finish time for a yearly amateur auto race was 186.94 minutes with a standard deviation of 0.305 minute. The winning car, driven by Roger, finished in 185.85 minutes. The previous year's race had a mean finishing time of 110.7 with a standard deviation of 0.115 minute. The winning car that year, driven by Karen, finished in 110.48 minutes.

Find their respective z-scores.

Who had the more convincing victory?

A. Roger had a more convincing victory because of a higher z-score.

B. Karen a more convincing victory because of a higher z-score.

C. Roger had a more convincing victory, because of a lower z-score.

D. Karen a more convincing victory because of a lower z-score.

Answer:

The correct option is D

Step-by-step explanation:

From the question we are told that

The mean of the current year is $\mu_c = 186.32 \ minutes$

The standard deviation is $\sigma_c = 0.305 \ minutes$

The time taken by the winning car for the current year is $x = 185.85 \ minutes$

The mean of the previous year is $\mu_p = 110.7 \ minutes$

The standard deviation the previous year is $\sigma_p = 0.115 \ minutes$

The time taken by the winning car for the previous year is $y = 110.48 \ minutes$

Generally the z-score for current year is mathematically evaluated as

$z_c = \frac{x- \mu_c}{\sigma_c }$

=> $z_c = \frac{ 185.85- 186.32}{0.305 }$

=> $z_c = -1.536$

Generally the z-score for previous year is mathematically evaluated as

$z_p = \frac{y- \mu_p}{\sigma_p }$

=> $z_p = \frac{ 110.48-110.7}{0.115 }$

=> $z_p = -1.913$

From the value obtained we see that $z_p < z_c$ , Hence Karen had a more convincing victory because of the lower z -score.

5 0

2 years ago

PLEASE HELP WITH ALL PROBLEMS WILL MARK BRAINLIEST PLUS ALL THESE POINTS

Irina18 [472]

Answer:

Step-by-step explanation:

14.Since the most common denominator is 40 lets multiply all the denominators to equal all to 40

Evita:24/40

Jack:25/40

Keisha:30/40

Sinjo:20/40

Therefore Keisha drank the most bottles

15. The most common denominator for 5/8 and 2/3 is 24 lets have both denominators equal to 24

5/8 -> 15/24

2/3-> 16/24

Therefore flour is the greater amount

16.Multiply the denominators equal to 6 since thats the least common denominator

1/2->3/6 | 2/3->4/6

Therefore peanuts is the greater ingredient amount

17.If you multiply both the numerator and denominator of a fraction by the same non-zero number, the fraction remains unchanged in value. Therefore, equivalent fractions can be created by multiplying (or dividing) the numerator and denominator by the same number.

18.We can compare fractions with unlike denominators by finding the least common denominator and making equivalent fractions. When the denominators are the same, the number with the larger numerator is the larger fraction.

6 0

2 years ago

I need help, please !

Dmitriy789 [7]

Answer: the answer is 8 because

Step-by-step explanation:

4 0

2 years ago