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V125BC [204]
3 years ago
14

Which one of the following would most likely have a negative linear correlation coefficient?

Mathematics
2 answers:
Alja [10]3 years ago
7 0

Answer:

D

Step-by-step explanation:

RATE BRAINLIEST IF RIGHT

GaryK [48]3 years ago
6 0

Answer:

D. the hours of daylight in a city throughout the year

Step-by-step explanation:

You might be interested in
What is the sum of 7/100 and 1/10
labwork [276]

Answer:

Step-by-step explanation:

To add fractions you need equal denominators

7/100+(1/10)(10/10)

7/100+10/100

17/100 (or 0.17 as a decimal)

8 0
2 years ago
What is the solution to this problem
Nuetrik [128]
Hello Again! The answer would be C. (8,11)
To confirm we will plug the numbers x = 8, Y = 11
------------------------
2x - 5 = y
(2 x 8) - 5 = 11
16 - 5 = 11
------------------------
y = x + 3
11 = 8 + 3
------------------------
So now you can determine that the answer would be (8,11)
8 0
2 years ago
Allen's hummingbird (Selasphorus sasin) has been studied by zoologist Bill Alther.â  Suppose a small group of 11 Allen's humming
alexira [117]

Answer:

3.15-1.28\frac{0.38}{\sqrt{11}}=3.003    

3.15+ 1.28\frac{0.38}{\sqrt{11}}=3.297    

So on this case the 80% confidence interval would be given by (3.003;3.297)

And the margin of error is given by:

ME = 1.28\frac{0.38}{\sqrt{11}}= 0.147    

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X=3.15 represent the sample mean

\mu population mean (variable of interest)

\sigma=0.38 represent the population standard deviation

n=11 represent the sample size  

Solution to the problem

The confidence interval for the mean is given by the following formula:

\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}   (1)

Since the Confidence is 0.80 or 80%, the value of \alpha=0.2 and \alpha/2 =0.1, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NOR.INV(0.1,0,1)".And we see that z_{\alpha/2}=1.28

Now we have everything in order to replace into formula (1):

3.15-1.28\frac{0.38}{\sqrt{11}}=3.003    

3.15+ 1.28\frac{0.38}{\sqrt{11}}=3.297    

So on this case the 80% confidence interval would be given by (3.003;3.297)

And the margin of error is given by:

ME = 1.28\frac{0.38}{\sqrt{11}}= 0.147    

8 0
3 years ago
Line segment AB is dilated to create line segment A’B’ using point Q as the center of dilation what is the scale factor
Alex777 [14]

Answer:

2

Step-by-step explanation:

We are given the distance QA=1.25 and QA'=2.5.

We make the relation 2.5/1.25=2 is the scale factor!

5 0
3 years ago
Please Solve. Thanks.
GalinKa [24]

Answer:

Option C, Y and Z appear to be parallel lines

Hope this helps!

3 0
2 years ago
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