All categories

3 years ago

Do you think this Scatter plot is linear or no? I really can't tell.

Mathematics

1 answer:

MrRa [10]3 years ago

4 0

Answer:

I would say no because the dots are all over the place.

Step-by-step explanation:

It keeps going up then down back up and down again?

You might be interested in

The distance traveled by a car moving at 30 miles per hour for t hours

Inga [223]

D = t*s
distance = time * speed
d = t*30

8 0

3 years ago

Cindy cats often share a carton of milk .

dexar [7]

1/3 = 4/12
5/12 = 5/12
1/6 = 2/12

4/12 + 5/12 + 2/12 = 11/12
12/12 - 11/12 = 1/12

1/2 of milk is left over.

6 0

3 years ago

A sample of 50 drills had a mean lifetime of 12.17 holes drilled when drilling a low-carbon steel. Assume the population standar

zmey [24]

Using the z-distribution, it is found that the 95% confidence interval for the mean lifetime of this type of drill, in holes drilled, is (10.4, 13.94).

We are given the <u>standard deviation for the population</u>, hence, the z-distribution is used. The parameters for the interval is:

Sample mean of $\overline{x} = 12.17$
Population standard deviation of $\sigma = 6.37$
Sample size of $n = 50$ .

The margin of error is:

$M = z\frac{\sigma}{\sqrt{n}}$

In which z is the critical value.

We have to find the critical value, which is z with a p-value of $\frac{1 + \alpha}{2}$ , in which $\alpha$ is the confidence level.

In this problem, $\alpha = 0.95$ , thus, z with a p-value of $\frac{1 + 0.95}{2} = 0.975$ , which means that it is z = 1.96.

Then:

$M = 1.96\frac{6.37}{\sqrt{50}} = 1.77$

The confidence interval is the <u>sample mean plus/minutes the margin of error</u>, hence:

$\overline{x} - M = 12.17 - 1.77 = 10.4$

$\overline{x} + M = 12.17 + 1.77 = 13.94$

The 95% confidence interval for the mean lifetime of this type of drill, in holes drilled, is (10.4, 13.94).

A similar problem is given at brainly.com/question/22596713

6 0

3 years ago

What does SOH,CAH,TOA mean?

Mice21 [21]

Answer:

Use Sin if Opposite Hypotenuse, Use Cosine if Adjacent Hypotenuse, and Use Tangent if Opposite Adjacent

7 0

3 years ago

A frozen dinner at the grocery store is purchased for $2.20 a wholesale and is a marked up for 40 percent. a customer wants to b

iren [92.7K]

First of all, you surely do have a lot of incorrect grammar in your statement. I can't understand a word that you are asking.

3 0

3 years ago