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Darina [25.2K]
2 years ago
9

The class average on Professor Bhatt's midterm for statistics was a 68. Because this score was unexpectedly low, she has decided

to award every student an additional 5 points. Adding these 5 points will _____ the distribution of scores.
Mathematics
1 answer:
denpristay [2]2 years ago
3 0

Adding these 5 points will have no effect on the shape of the distribution of scores.

<h3>What is an average? </h3>

Average is a measure of central tendency. It is determined by adding the total observations and dividing it by the total number of observations. For example, if the sum of scores on the test is 680 and there are 10 students, the average score would be 68.

When the all the scores are increased by the same number, the shape of the distribution would remain unchanged.

To learn more about average, please check: brainly.com/question/25750771

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What is the area of the sector? Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter
n200080 [17]

Question:

What is the area of the sector? Either enter an exact answer in terms of π or use 3.14 and enter your answer as a decimal rounded to the nearest hundredth.

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete as the values of radius and central angle are not given.

However, I'll answer the question using the attached figure.

From the attached figure, the radius is 3 unit and the central angle is 120 degrees

The area of a sector is calculated as thus;

Area = \frac{\alpha }{360} * \pi r^2

Where \alpha represents the central angle and r represents the radius

By substituting \alpha = 120 and r = 3

Area = \frac{\alpha }{360} * \pi r^2 becomes

Area = \frac{120}{360} * \pi * 3^2

Area = \frac{1}{3} * \pi * 9

Area = \pi * 3

Area = 3\pi square units

Solving further to leave answer as a decimal; we have to substitute 3.14 for \pi

So, Area = 3\pi becomes

Area = 3 * 3.14

Area = 9.42 square units

Hence, the area of the sector in the attached figure is 3\pi or 9.42 square units

8 0
3 years ago
A 30 foot tree broke from its base and fell against a house. If the tree touches at 21 feet what angle is the tree forming with
Ray Of Light [21]
The angle will be acute since 21 is less than 90 degrees 
3 0
4 years ago
Which relation is a function?
guapka [62]

Answer:

A.  For a function to be a function, the x's cant repeat. ( don't know if that hans anything to do with the question lol)  But the answer is A.


Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
Pauline is going to buy grey parrots ($300 each) and blue lovebirds ($20 each) for the store. She wants 10 birds total. She has
timofeeve [1]

Answer:

You have every right to be angry, but that doesn't give you the right to be mean.

He drank life before spitting it out.

My Mum tries to be cool by saying that she likes all the same things that I do.

Step-by-step explanation:

3 0
3 years ago
If f(x)=2x² +5√(x-2), complete the following statement:
myrzilka [38]

By functional analysis we have the following conclusion about the function given: The domain for f(x) is all real numbers greater than or equal to 2.

<h3>How to determine the domain of a function with radical components</h3>

Domain is the set of x-values such that the value of the function exists. By algebra we know that the domain of polynomials is the set of all <em>real</em> numbers, whereas the domain of <em>radical</em> functions is the set of x-values such that y ≥ 0. If we know that f(x) = 2 · x² + 5 · √(x - 2), then the domain is restricted by the <em>radical</em> component and defined by x ≥ 2.

By functional analysis we have the following conclusion about the function given: The domain for f(x) is all real numbers greater than or equal to 2.

To learn more on functions: brainly.com/question/12431044

#SPJ1

8 0
2 years ago
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