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kow [346]
2 years ago
10

Your teacher has asked you to explain the difference between quantitative and qualitative observations. Which statement is corre

ct?
Question 8 options:

Quantitative observations use numbers, qualitative uses the senses.


Quantitative observations use the senses, qualitative uses numbers.


Quantitative observations use measurement, qualitative uses numbers.


Quantitative observations use colors, qualitative uses the senses.
Mathematics
1 answer:
Thepotemich [5.8K]2 years ago
8 0

Answer:

Step-by-step explanation:

B is the answer and if the next has something to do with connie then your answer is C

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A dart is tossed and hits the dart board shown. The dart is equally likely to land on any
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It would be 4.9%, hope this helps :)
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2 years ago
Scores on the math portion of the SAT are believed to be normally distributed and range from 200 to 800. A researcher from the a
Doss [256]

Using the z-distribution, it is found that she should take a sample of 46 students.

<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm z\frac{\sigma}{\sqrt{n}}

The margin of error is:

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

In which:

  • \overline{x} is the sample mean.
  • z is the critical value.
  • n is the sample size.
  • \sigma is the standard deviation for the population.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

Scores on the math portion of the SAT are believed to be normally distributed and range from 200 to 800, hence, by the Empirical Rule the standard deviation is found as follows:

6\sigma = 800 - 200

6\sigma = 600

\sigma = 100

The sample size is n when M = 29, hence:

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

29 = 1.96\frac{100}{\sqrt{n}}

29\sqrt{n} = 196

\sqrt{n} = \frac{196}{29}

(\sqrt{n})^2 = \left(\frac{196}{29}\right)^2

n = 45.67.

Rounding up, a sample of 46 students should be taken.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

4 0
2 years ago
Find the volume of a cube where the length of each side is 6 centimeters.
notka56 [123]
Well if each side is 6cm each then u Have to multiply 6x how many sides to the cube there are. So if there are 6 sides to a cube and you have 6cm each side then you have to multiply 6cm X 6 witch = 36 then multiply 36X6=216. So the final answer is 216. 

Hope this helps!  
4 0
2 years ago
After visiting the Titanic, Captain Brain and Mr. Pinky are taking the Alvin submarine back to the surface of the water. They st
ivanzaharov [21]

Answer:

m=37h-1500.

Step-by-step explanation:

Let m represent meters and h represent hours.

We have been given that Captain Brain and Mr. Pinky start 1500 meters below the surface of the water and ascend at 37 meters per hour.

Since the submarine ascends at a rate of 37 meters per hour, so elevation of submarine after h hours would be 37h.

Since the elevation under water surface is negative, so 1500 meters below the surface of water would be -1500.    

The final elevation in meters of submarine after h hours would be initial elevation plus change in elevation after h hours that is m=37h-1500.

Therefore, the equation m=37h-1500. represents the given scenario.

8 0
3 years ago
What is the slope of the line? I NEED ASAPPP PLEASEEE!!! I’ll make you brainliest if correct
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4/5 is the slope.

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