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Leni [432]
3 years ago
9

WHO EVER ANSWERS CORRECTLY GETS BRAINLY!

Mathematics
1 answer:
Alecsey [184]3 years ago
7 0

A box plot does not show the mean or the number in the sample. It does show

... The lower quartile for the data

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A researcher is conducting a study of charitable donations by surveying a simple random sample of households in a certain city.
nirvana33 [79]

Answer:

H0: p ≤ 0.50

Ha: p > 0.50

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

For the case above;

Let p represent the proportion of households in the city that gave a charitable donation in the past year

The null hypothesis is that the proportion of households in the city that gave a charitable donation in the past year is not more that 0.50

H0: p ≤ 0.50

The alternative hypothesis is that the proportion of households in the city that gave a charitable donation in the past year is more that 0.50

Ha: p > 0.50

7 0
3 years ago
Solve for x. Show all your work
olasank [31]

42°

Step-by-step explanation:

\angle BAE =180\degree -132\degree

(Angles in linear pair)

\angle BAE =48\degree

\angle AEB =90\degree..(\because \overrightarrow{EC}\perp\overrightarrow{ED})

\angle ABE = 180\degree-(48\degree+90\degree)

(Angle sum postulate of a triangle)

\implies\angle ABE = 180\degree-138\degree

\implies\angle ABE = 42\degree

\angle CDE =\angle ABE = 42\degree

(corresponding angles)

\implies x\degree=\angle CDE

(vertical angles)

\implies x\degree=42\degree

\implies x=42

3 0
2 years ago
The function represented by the table has the form y =acos(bx). Which of the following statements are tru
nlexa [21]

Answer:

It's A C & D

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Factorise 3x^2-6x<br> Thanksssss
9966 [12]

Answer:

3x(x - 2)

Step-by-step explanation:

Given

3x² - 6x ← factor out the common factor 3x from each term

= 3x(x - 2)

8 0
3 years ago
Read 2 more answers
What is the height of the pole?<br> top<br> O 12 ft<br> O 125 ft<br> O 18 ft<br> O 182 ft
Fiesta28 [93]
The Answer is A

Hope this helps
3 0
3 years ago
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