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3 years ago

From the list below, determine which properties are for compounds.

SAT

1 answer:

qaws [65]3 years ago

5 0

Where’s the list of properties?

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Define a pattern of art

DedPeter [7]

Answer:

In art, a pattern is a repetition of specific visual elements.

Explanation:

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3 years ago

Composite materials are made mainly to improve temperature resistance.

Salsk061 [2.6K]

Strength and stiffness.

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3 years ago

Students in a statistics class are conducting a survey to estimate the mean number of units students at their college are enroll

Andrew [12]

Using the t-distribution, as we have the standard deviation for the sample, it is found that the 95% confidence interval for the number of units students in their college are enrolled in is (11.7, 12.7).

<h3>What is a t-distribution confidence interval?</h3>

The confidence interval is:

$\overline{x} \pm t\frac{s}{\sqrt{n}}$

In which:

$\overline{x}$ is the sample mean.

t is the critical value.

n is the sample size.

s is the standard deviation for the sample.

The critical value, using a t-distribution calculator, for a two-tailed <em>95% confidence interval</em>, with 49 - 1 = <em>48 df</em>, is t = 2.0106.

Hence:

$\overline{x} - t\frac{s}{\sqrt{n}} = 12.2 - 2.0106\frac{1.6}{\sqrt{49}} = 11.7$

$\overline{x} + t\frac{s}{\sqrt{n}} = 12.2 + 2.0106\frac{1.6}{\sqrt{49}} = 12.7$

The 95% confidence interval for the number of units students in their college are enrolled in is (11.7, 12.7).

More can be learned about the t-distribution at brainly.com/question/16162795

4 0

3 years ago

Find U= {1,2,3,4,5,6,7,8,9,10}, A={2,4,5}, B={5,7,8,9}. Find AnB

Nitella [24]

Answer:

It is A intersection B.

So,the answer is 5.

7 0

3 years ago

Functions of input hardware

BigorU [14]

Answer:

In computing, an input device is a peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or other information appliance. Examples of input devices include keyboards, mice, scanners, digital cameras and joysticks.

Explanation:

4 0

3 years ago