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2 years ago

Use a calculator to find the r-value of these data. Round the value to three decimal places.

Mathematics

2 answers:

umka21 [38]2 years ago

8 0

The answer would be.. B -0.985

Hope this helps!!

Sindrei [870]2 years ago

4 0

Answer:

-0.985

Step-by-step explanation:

Refer to the image below for explanation:

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Thirty-three college freshmen were randomly selected for an on-campus survey at their university. The participants' mean GPA was

Ivan

Answer: $\pm0.1706$

Step-by-step explanation:

Given : Sample size : n= 33

Critical value for significance level of $\alpha:0.05$ : $z_{\alpha/2}= 1.96$

Sample mean : $\overline{x}=2.5$

Standard deviation : $\sigma= 0.5$

We assume that this is a normal distribution.

Margin of error : $E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

i.e. $E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706$

Hence, the margin of error is $\pm0.1706$

7 0

3 years ago

Spin o wia

prohojiy [21]

Where is the other one?

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3 years ago

Is 226.08cm to the third power the correct response?

drek231 [11]

Surface Area of a cylinder 2(π•r²)+(2π•r)•h

So

If the diameter is 8 then the radius is 4. the height is 5.

so you have, 2(3.14•4²)+(2•3.14•4)•5

solve. PEMDAS
Parentheses & Exponents first.
2(3.14•16)+(2•3.14•4)•5
2(50.24)+(6.28•4)•5
2(50.24)+(25.12)•5
Multiplication & Division second (left to right)
100.48+125.6
Add & Subtract (left to right)
226.08cm

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3 years ago

PLS HELP ME WITH THESE QUESTIONS!

kirill [66]

Answer:

(4, 1/4)

Step-by-step explanation:

Factoring the numerator and the denominator, we have:

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2 years ago

Find the area of the figure to the nearest tenth.

ad-work [718]

Answer: 31.3 square feet

Step-by-step explanation:

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2 years ago