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faust18 [17]
3 years ago
7

One essential feature of the normal distribution is that its graph is

Mathematics
2 answers:
Ksivusya [100]3 years ago
6 0
the answer is C) symmetric
Anna11 [10]3 years ago
3 0
One essential feature of the normal distribution is that its graph is SYMMETRIC
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R is inversely proportional to A.
hjlf

Here are the answer: a) R = 3.6 and b) A = 2

Step-by-step explanation:

Given,

R is inversely proportional to A.

R ∝ \frac{1}{A}

so, R = \frac{k}{A}  -------eq 1 where k is any constant

To find the values of a) R when A = 5 and

b) Value of A when R = 9

Now,

Putting R = 12 and A = 1.5 in eq 1 we get,

12 = \frac{k}{1.5}

or, k = 12×1.5 = 18

From eq 1 we get,

R = \frac{18}{A} --------- eq 2

Now,

a) Putting A= 5 in eq 2 we get,

R = \frac{18}{5} = 3.6

b)  Putting R = 9 in eq 2 we get

R = \frac{18}{A}

or, A = \frac{18}{9} = 2

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3 years ago
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7.) If a circle has a diameter of 40 inches, what is the same circles radius?
My name is Ann [436]
The radius is always half of the diameter so it would be 20 inches
5 0
3 years ago
PLEASE HELP THIS IS A TEST
cluponka [151]

Answer:

C, F, and maybe D are correct.

Step-by-step explanation:

8 0
3 years ago
A researcher plans to conduct a significance test at the 0.01 significance level. She designs her study to have a power of 0.90
Rasek [7]

Answer: 0.10

Step-by-step explanation: The type 2 error is committed when the alternative hypothesis is rejected when it should have been accepted causing the researcher to accept the null hypothesis which is false.

Power is the probability of avoiding a type 2 error. That is ;

Power = 1 - P(type 2 error)

Given that power = 0.90 ; P(type 2 error) = probability of committing a type 2 error.

P(type 2 error)' = 1 - P(type 2 error) = Probability of not committing or avoiding a type 2 error

0.90 = 1 - P(type 2 error)

P(type 2 error) = 1 - 0.90

P(type 2 error) = 0.10

6 0
3 years ago
Sarah bought a television that cost $805.She plans to make equal payments of $38 each month until the television is paid in full
yawa3891 [41]

Answer:

Step-by-step explanation:

805/38= 21 7/38

So that is 21 full payments of $38.00 and one of $7.00

8 0
3 years ago
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