Si un conjunto de datos se expresa en metros(m), ¿en qué unidad de medida se expresará la varianza?

Answer:

The answer is below

Step-by-step explanation:

When you fill your coffee at a gas station, you're supposed to get 8 ounces of coffee with a standard deviation of .7 ounces. A random sample of 50 "8 ounce" coffees is collected and measured and the mean was found to be 7.8 ounces. a) Find a 90% confidence interval. b) Interpret the confidence interval in the context.

Solution:

The confidence = 90% = 0.9, mean (μ) = 7.8 ounces, standard deviation (σ) = 0.7 ounces, sample size (n) = 50

α = 1 - C = 1 - 0.9 = 0.1

α/2 = 0.1 / 2 = 0.05

The z score of α/2 is the same as the z score of 0.45 (0.5 - 0.05) which is equal to 1.65

The margin of error (E) is given by:

[tex]E = z_\frac{\alpha}{2} *\frac{\sigma}{\sqrt{n} } \\\\E=1.65*\frac{0.7}{\sqrt{50} } =0.16[/tex]

The confidence interval = μ ± E = 7.8 ± 0.16 = (7.64, 7.96)

b) This means that we are 90% confident that any selected coffee has a weight between 7.64 ounce to 7,96 ounce

Answer:

40.3291139241

Step-by-step explanation:

no, thank you

Answer: You get 40.36 first. If it is by nearest tenth, then 40.4. Nearest ten, then 40

Answer:

y=1x+8

Step-by-step explanation:

Answer:

Everybody's laughing in my mind

Rumors spreading 'bout this other guy

Do you do what you did when you did with me

Does he love you the way I can

Did you forget all the plans that you made with me?

'Cause baby I didn't

That should be me, holding your hand

That should be me, making you laugh

That should be me, this is so sad

That should be me

That should be me

That should be me, feeling your kiss

That should be me, buying you gifts

This is so wrong

I can't go on

Till you believe

That should be me

That should be me

Answer:

A

Step-by-step explanation:

because every 3 bats he hit 1

Answer:

B

Step-by-step explanation:

if it was A it would be for a cat

if it was C it would be for a elephant

if it was D it would be for a giant

Answer:

You would multiply them which would be 24 brainliest?

Step-by-step explanation:

Given:

The height of a golf ball is represented by the equation:

[tex]y=x-0.04x^2[/tex]

To find:

The maximum height of of Anna's golf ball.

Solution:

We have,

[tex]y=x-0.04x^2[/tex]

Differentiate with respect to x.

[tex]y'=1-0.04(2x)[/tex]

[tex]y'=1-0.08x[/tex]

For critical values, [tex]y'=0[/tex].

[tex]1-0.08x=0[/tex]

[tex]-0.08x=-1[/tex]

[tex]x=\dfrac{-1}{-0.08}[/tex]

[tex]x=12.5[/tex]

Differentiate y' with respect to x.

[tex]y''=(0)-0.08(1)[/tex]

[tex]y''=-0.08[/tex]

Since double derivative is negative, the function is maximum at  [tex]x=12.5[/tex].

Substitute [tex]x=12.5[/tex] in the given equation to get the maximum height.

[tex]y=(12.5)-0.04(12.5)^2[/tex]

[tex]y=12.5-0.04(156.25)[/tex]

[tex]y=12.5-6.25[/tex]

[tex]y=6.25[/tex]

Therefore, the maximum height of of Anna's golf ball is 6.25 units.

Answer:

D : 125°,125°,55°,55°

Step-by-step explanation:

Finding the interior angles makes the question easier.

The two base angles for b1 are both 125°, and the two base angles for b2 are both 55°.

Because a straight line is 180°, we can find the exterior angles by subtracting the interior angles from 180°.

180°-55° = 125°

180°-125° = 55°

Answer:

Step-by-step explanation:

Answer:

I'm pretty sure it is 2/15

Answer:

A

Step-by-step explanation:

Hi again. In this case, the graph enlarges. Coefficient of x is <1. Try to substitute x = 3 to (1/3x)^2 and (1/9x^2)

(1/3 * (3))^2=1

Answer:

i think the answer is no i used tge desmo graphing calculator and tht point wasnt on it

Answer:

pues yo pienso que es 8 es que no se muy bien

Answer: =14/15

Step-by-step explanation: Hope this help :D, Can I have a Brainliest I really needed it please!

Answer: a = 6.53

Step-by-step explanation:

Answer: its HCFD i just did it

Step-by-step explanation:

Answer:

X = 1/3 (to make it short) plz brainliest

Step-by-step explanation:

Answer:

227 units²

Step-by-step explanation:

Area of rectangle

a = (2 * 11.5) * (4 * 11.5)

a = 1,058

Area of circles

a = 2(π * 11.5²)

a = 830.9512568745

Shaded area

a = 1,058 - 830.9512568745

a = 227.0487431255

a ≈ 227

Answer:

-2x - 10

Step-by-step explanation:

-2 x X = -2x

-2 x 5 = -10

Put them together to get:

-2x - 10

Answer:

-2(x) or (-2×x)

then you get = -2x

then you take

-2×+5 or (-2×5) you'll get = -10

last but not least you join the equation

and the answer will be

= -2x-10

Answer:

3 minutes and 34 seconds

Answer:

Bob's can make one burger in 0.3 minutes, or 18 seconds.

Step-by-step explanation:

Bob's can make 10 hamburgers in 3 minutes. To determine how long it takes Bob's to make a single hamburger, we divide the 3 minutes by the 10 hamburgers.

3/10 = 0.3 minutes

It takes him 0.3 minutes to make one burger.

We could go further and convert this time to seconds. To do this, we multiply 0.3 minutes by 60 seconds.

0.3 ⋅ 60 = 18 seconds

Bob's can make one hamburger in 18 seconds.

Answer:

5 meters

Step-by-step explanation:

The values given, 3 and 4, are the legs a and b. The hypotenuse is the third and longest side, c.

To find the length of the hypotenuse, use the formula a² + b² = c².

Substitute our values for a and b and solve.

a² + b² = c²

3² + 4² = c²

9 + 16 = c²

25 = c²

√25 = √c²

5 = c

The hypotenuse is 5 meters long.

I hope this helps <3

Answer:

9 men choose 5 / 16 people choose 5 = 9c5 /16c5 = 3/104

Answer:

Sin k jajs

Step-by-step explanation:

Answer:

solution given :

<A=?

<B=50°

<C=50°

if it is a triangle:

<A+<B+<C=180°( sum of interior angle of a triangle is 180°)

<A=180-50-50

<A=80°

<A=80° is a required answer.

Its a isosceles triangle

So

<A:-

Answer:

1.5 inches po

Step-by-step explanation:

thanks me later

good luck!

Answer:

4.1

Step-by-step explanation:

Answer:

H

Step-by-step explanation:

I don't know if I did it wrong because I got 4,206.27 but I probably did

Answer:

9y-25

Step-by-step explanation:

Answer:

9y-25

Step-by-step explanation:

Math