PLZZ HELPP ILL GIVE BRAINLIST

greater than, less than, equal to
Choose either >, < or = for each row.

Answer:

SEE BELOW

Step-by-step explanation:

A: Yes, it is 18.80%. Sample Mean= 135, Sample Standard deviation= 25/sq rt of 10 = 7.906, normalcdf(142, 999999, 135, 7.906) = .18796 × 100 = 18.796 = 18.80%

B: If we increase the sample size to 50, then, due to the Central Limit Therme, there should be less variation within the data (it should point to a more clear center). Sample Mean= 135, Sample Standard deviation= 25/sq rt of 50 = 3.535, normalcdf(142, 999999, 135, 3.535) = .02385 × 100 = 2.385 = 2.39%

The probability that the mean playtime is more than 142 seconds for an SRS of 10 videos is not accurately calculated and the probability that the mean playtime is more than 142 seconds is 0.0244.

Given :

A) The probability that the mean playtime is more than 142 seconds for an SRS of 10 videos is not accurately calculated because the sample size is too small due to which the central limit theorem cannot be applied.

B) According to the given data, the sample size is 50.

[tex]P(\bar{X}>142)=P\left(\dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n} }}>\dfrac{142-\mu}{\dfrac{\sigma}{\sqrt{n} }}\right)[/tex]

[tex]P(\bar{X}>142)=P\left(Z>\dfrac{142-135}{\dfrac{25}{\sqrt{50} }}\right)[/tex]

[tex]P(\bar{X}>142)=P\left(Z>1.9798\right)[/tex]

Using the z table the above expression becomes:

[tex]P(\bar{X}>142)=0.0244[/tex]

For more information, refer to the link given below:

https://brainly.com/question/898534

Answer:

answer is b

Step-by-step explanation:

Answer:

5/12

Step-by-step explanation:

The required value in fraction form is 5/12

Given the expression

1/2 x 5/6

We are to express in fraction form. To do this we will multiply the numerator and denominator together to have:

1/2 x 5/6

= (1 * 5)/(2 * 6)

= 5/12

Hence the required value in fraction form is 5/12

Learn more on fraction here: https://brainly.com/question/78672

Answer:

310 is equivalent to 620 because 3 x 20 = 10 x 6 = 60. 930 is equivalent to 620 because 9 x 20 = 30 x 6 = 180. 1240 is equivalent to 620 because 12 x 20 = 40 x 6 = 240.

Step-by-step explanation:

Answer:

30%

Step-by-step explanation:

What's 6 divided by 20?

6/20 = 30

Answer:26.9072480941

Step-by-step explanation:

Answer:

1025 Please Mark Me Brainliest

Step-by-step explanation:

Answer:

A sample of 217 is needed.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1-0.95}{2} = 0.025[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1-\alpha[/tex].

So it is z with a pvalue of [tex]1-0.025 = 0.975[/tex], so [tex]z = 1.96[/tex]

Now, find the margin of error M as such

[tex]M = z*\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

If the population standard deviation is $3,750 how large should the sample be if margin of error is $500

We have that [tex]\sigma = 3750[/tex].

We need a sample of n, and n is found when [tex]M = 500[/tex]. So

[tex]M = z*\frac{\sigma}{\sqrt{n}}[/tex]

[tex]500 = 1.96*\frac{3750}{\sqrt{n}}[/tex]

[tex]500\sqrt{n} = 1.96*3750[/tex]

[tex]\sqrt{n} = \frac{1.96*3750}{500}[/tex]

[tex](\sqrt{n})^{2} = (\frac{1.96*3750}{500})^{2}[/tex]

[tex]n = 216.1[/tex]

Rounding up

A sample of 217 is needed.

Answer:

Step-by-step explanation:

lets see

27=7*4=7*2*2

48=3*2*2*2*2

both numbers are divisible by 4

27/3=9, 48/3=16

Answer = 3

Answer:

30%=30/100=3/10

Step-by-step explanation:

3/10*180

Simplify 180 and 10.

3*18=54

Answer:

8

Step-by-step explanation:

in right angle triangle

h^2=p^2+b^2

5^2=3^2+b^2

25-9=b^2

b=√16=4

radius=4

diameter=4×2=8

Answer:

c

Step-by-step explanation:

Answer:

80+45x this is because I don't noo???????

Answer:

irrational

Step-by-step explanation:

its a decimal that never ends or repeats and cant be accurately turned into a fraction, like pi

Answer:

QR=11

Step-by-step explanation:

Answer:

(6,-7) Would be in Quadrant IV

Step-by-step explanation:

Answer:  

First you have to figure out the total.

42+35+23= 100

So plug it in.

23/100

23%

Your answer is 23%.

Hope this helped ^-^

Step-by-step explanation:

Answer:

A/5%=b-c+3-5%=d£&68+7-7'

Answer:

where is the cylinder.....................

Answer:

Where is the cylinder??????

Step-by-step explanation:

Answer:

33

Step-by-step explanation:

[tex] {x}^{2} - 5x - 2 = 0 \\ \\ equating \: it \: with \\ a {x}^{2} + bx + c = 0 \\ we \: find : \\ a = 1 \\ b = - 5 \\ c = - 2 \\ \\ {b}^{2} - 4ac \\ = {( - 5)}^{2} - 4 \times 1( - 2) \\ = 25 + 8 \\ = 33 \\ \\ by \: quadratic \: formula \\ \\ x = \frac{ - b \pm \sqrt{ {b}^{2} -4ac } }{2a} \\ \\ x = \frac{ - ( - 5) \pm \sqrt{33}}{2 \times 1} \\ \\ x = \frac{ 5 \pm \sqrt{33}}{2}...(1) \\ \\x = \frac{ 5 \pm \sqrt{n}}{2}...(2) (given)\\ \\ equating \: equations \: (1) \: and \: (2) \\ \\ \huge \red{ \boxed{n = 33}}[/tex]

Answer:

$750

Step-by-step explanation:

rent is 30% of $2,500 Tom's total monthly budget.

30/100 x 2500 = 750

Answer:

The angle of elevation from Ethan to the space shuttle is approximately 0.405º.

Step-by-step explanation:

Let O and A the locations observation spot and the space shuttle, respectively. BA is the height of the space shuttle from the ground. All length are measured in miles. We include a simplified geometrical representation of the situation.

Since a right triangle is formed, we can find the angle of elevation ([tex]\theta[/tex]), measured in sexagesimal degrees, by the following inverse trigonometrical relationship:

[tex]\theta = \tan^{-1}\left(\frac{BA}{OB} \right)[/tex] (1)

Where OB is the distance from the observation spot to the point just below the space shuttle.

If we know that [tex]OB = 99\,mi[/tex] and [tex]BA = 0.7\,mi[/tex], then angle of elevation from Ethan to the space shuttle is:

[tex]\theta = \tan^{-1}\left(\frac{0.7\,mi}{99\,mi} \right)[/tex]

[tex]\theta \approx 0.405^{\circ}[/tex]

The angle of elevation from Ethan to the space shuttle is approximately 0.405º.

Answer:

Collision theory, theory used to predict the rates of chemical reactions, particularly for gases. The collision theory is based on the assumption that for a reaction to occur it is necessary for the reacting species (atoms or molecules) to come together or collide with one another.

Answer:

its c

Step-by-step explanation:

Answer:

400 miles

Step-by-step explanation:

50 miles.....1 gallon

x miles......8 gallons

50*8=400