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postnew [5]
3 years ago
14

Answer this and ill will help back and give brainliest

Mathematics
1 answer:
love history [14]3 years ago
7 0

Answer:

Gh 2

Step-by-step explanation:

2

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If a fair die is rolled 3 times, what is the probability, to the nearest thousandth, of getting exactly 2 fives?
Alexxandr [17]

Answer:

The answer is .578 you just do 5/6 due to the fact that there are 6 sides on a die and 1 side is a 2 so if you don’t get a two there is 5 sides left so you do 5/6 to the power of 3 leaving you with .578 and some

Step-by-step explanation:

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3 years ago
Calculate the mode of the data set below. {3, 7, 9, 2, 5, 3, 4, 6, 1, 0} A. 3 B. 3.5 C. 4 D. 10
Shkiper50 [21]
The mode is the number that appears most often. The answer is A.3.
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Answer four and five please
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Past experience has indicated that the breaking strength of yarn used in manufacturing drapery material is normally distributed
lana66690 [7]

Answer: (95.2,\ 100.8)

Step-by-step explanation:

Given : Past experience has indicated that the breaking strength of yarn used in manufacturing drapery material is normally distributed and that σ = 4 psi.

A random sample of 8 specimens is tested, and the average breaking strength is found to be 98 psi.

i.e. n= 8  and \overline{x}=98

Critical value for 95% confidence = z_{\alpha/2}=1.96

Confidence interval for population mean :-

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

i.e. 98\pm (1.96)\dfrac{4}{\sqrt{8}}

\approx98\pm 2.7719

=(98-2.7719,\ 98+2.7719)

=(95.2281,\ 100.7719)\approx(95.2,\ 100.8)

Hence,  a 95% two-sided confidence interval on the true mean breaking strength. = (95.2,\ 100.8)

5 0
3 years ago
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