In a paragraph, define the following concepts.

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

Which detail best supports the central idea that the animals felt pride in growing and supplying their own food? "all through th

astraxan [27]

Answer: Every mouthful of food was an acute positive pleasure now that it was truly their own food (C)

Explanation:Trust the process

4 0

2 years ago

vWhat is the measure of the unknown angle? Right triangle. Angle formed with base and hypotenuse is 50 degrees. Angle formed wit

scoundrel [369]

Answer: Angle formed with height and hypotenuse is 40 degrees

Explanation:

Hi, to answer this question we have to analyze the information given:

Since the triangle is a right triangle it has a right angle that has a value 90 degrees.

Since the sum of the interior angles is equal to 180 degrees:

180 = x +50 + 90

Solving for x:

180-90-50 =x

40° =x

Feel free to ask for more if needed or if you did not understand something.

6 0

3 years ago

A political candidate has asked his/her assistant to conduct a poll to determine the percentage of people in the community that

Alexxandr [17]

Answer:

The size of the sample needed = 67.65

Explanation:

Given that :

The margin of error = 10% = 0.10

The confidence level = 90% = 0.90

Level of significance = 1 - 0.90 = 0.10

At ∝ = 0.10

$Z_{\alpha/2}= Z_{0.10/2} = 1.645$

Since the proportion of people that supported him/her is not given, we assumed p = 0.50

The margin of error formula can be expressed as:

$M.O.E = Z_{\alpha/2} \times \sqrt{\dfrac{p(1-p)}{n}}$

$0.10 = 1.645 \times \sqrt{{\dfrac{0.5(1-0.5)}{n}$

Squaring both sides; we have:

$0.10^2 = 1.645^2 \times {\dfrac{0.5(1-0.5)}{n}$

$0.01 = 2.706025 \times \dfrac{0.25}{n}$

$n= 2.706025 \times \dfrac{0.25}{0.01 }$

n = 67.65

Therefore, the required sample size = 67.65

4 0

3 years ago

Find the value of z such that

Reika [66]

Answer:

z = 1.00

Explanation:

Given:

Probability of z value = 0.6826

By using standard normal table for z value.

P(-z < Z < z) = 0.6826

P(Z < z) - P(Z < -z) = 0.6826

We know that

P(Z < z) + P(Z < -z) = 1

So,

2P(Z < z) - 1 = 0.6826

2P(Z < z) = 1 + 0.6826

2P(Z < z) = 1.6826

P(Z < z) = 1.6826 / 2

P(Z < z) = 0.8413

So,

P(Z < 1.00) = 0.8413

z = 1.00

5 0

3 years ago