-2=k+7/3. solve for k

Answer:

a) Mean is 12.9

b) Standard Error

i) n = 16, Standard Error = 1

The shape of the sampling distribution means is not normal

ii) n = 49 , Standard Error = 0.5714285714

The shape of the sampling distribution means is normal

iii) n = 121, Standard Error = 0.3636363636

The shape of the sampling distribution means is normal

c)Describe the pattern as n increases

As the number of random samples(n) increases the value for the standard error decreases

Step-by-step explanation:

Central Limit Theorem states that

if the sample size is large (generally n ≥ 30), and the standard deviation of the population is finite, then the distribution of sample means will be approximately normal.

a) 16 residents

Mean = 12.9

Standard Error = Standard Deviation /√n

= 4/√16

= 4/4

= 1

n < 30, hence, The shape of the sampling distribution means is not normal

b) 49 residents

= Mean = 12.9

Standard Error = Standard Deviation /√n

= 4/√49

= 4/7

= 0.5714285714

n > 30, hence, The shape of the sampling distribution means is normal

c) 121 residents

Mean = 12.9

Standard Error = Standard Deviation /√n

= 4/√121

= 4/11

= 0.3636363636

n > 30, hence, The shape of the sampling distribution means is normal

Describe the pattern as n increases

As the number of random samples(n) increases the value for the standard error decreases

Answer:

4%

Step-by-step explanation:

Step 1:

1/25 = 4/100      Convert Fraction

Step 2:

4/100 = 0.04     Divide by 100

Step 3:

0.04 = 4%        Convert

Answer:

4%

Hope This Helps :)

Answer:

A. (the vertical scale)

2nd part is the Bottom graph

Step-by-step explanation:

Answer:

A. The Vertical Scale

Step-by-step explanation:

the other one has more value than the other....And i got it right from

---------------------------------------E D G E N U I T Y 2 0 2 0--------------------------------------

hope this helps. :P

Answer:

12 computers/1 day

Step-by-step explanation:

Take one of the day numbers and the output: 60/5=12 per day

Answer:

-4 and 10

Step-by-step explanation:

USE THE INFO BELOW TO SOLVE

Step-by-step explanation:

The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average. The median is sometimes used as opposed to the mean when there are outliers in the sequence that might skew the average of the values.

need more help?

pics are below for more examples.

:)

Answer:

a

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

The triangle inequality rule states that the length of a side of a triangle is less than the sum of the lengths of the other two sides and greater than the difference of the lengths of the other two sides.

Answer:

No

Step-by-step explanation:

It doesn't agree to Pythagoras Theoram.

But if they were the sqrt values, it would work.

Answer:

lemons is greater ratio

Step-by-step explanation:

cause the ratio is larger

lemons to water

5:2

2:1

simplify....

2.5:1

2:1

lemons is greater ratio

Answer:

Emma's recipe will be more "lemony"

Step-by-step explanation:

If you are to take Clair's recipe and multiply it x2 so that the common denominator (cups of water) is equal, it will show you that Emma's recipe has more lemons in it; therefore will be more "lemony"

Answer:

-17

Step-by-step explanation:

You have to simplify the expression!

Answer:

-17

Step-by-step explanation:

Answer:

2736 square feet

Step-by-step explanation:210 minus 18(9 times 2 )equals 192 then 192 divided by 4 (4 because 4 side )equals 48 (48 is the width) to get the length 48 plus 9 equals 57 (57 is the length) to  get the area multiply length times width so 57 times 48 equals 2736 square feet

Answer:

1,2,3,5

Step-by-step explanation:

Answer:

11x

Step-by-step explanation:

Add the 3 and 8 togeter, you will get 11 then the x at the and of you're solution.

Answer:

1 x 11

10 + 1

Step-by-step explanation:

Answer:

yyeeeett

Step-by-step explanation:

just a guess y'know

Answer:

Step-by-step explanation:

Why, it’s quite simple: yeet plus yeet =2yeet. Or if one of those yeets yeeted themselves out the window like Papyrus yeeted himself out of Undyne’s window, then only one sad yeet is left without a friend to yeet.

HOPE THIS HELPS NYHEHEHEHEH

-Signed by The Great Papyrus Spagettitore

Answer:

The last one, −2.1−(5.9+3.7)

Step-by-step explanation:

−2.1+(−5.9)+(−3.7) = -2.1-5.9-3.7 = -11.7

the only expression that will come out as -11.7 is the last one

Answer:

The Answer is

-2.1 - (-5.9 + 3.7)

You can totally trust me!!!

Step-by-step explanation:

It's this because they both end up with the same answer and the other ones are like very wrong.

Step-by-step explanation:

1 minute has 60 seconds

what about 450 seconds

so

450/60=7.5

so 450 seconds are 7.5 minutes.

Answer:

circle

Step-by-step explanation:

lol where teh f parabola come from

if it's perpendicular it makes a 90 degree angle to the central axis

that would make it a circle...

parabolas r when the plane forms the same angle w the central axis as the generator..............................

A conic section which is formed by a plane intersecting a double-napped cone that is perpendicular to the central axis is a: A. circle.

A circle can be defined as a closed, two-dimensional curved geometric shape with no edges or corners. Also, it refers to the set of all points in a plane that are located at a fixed distance (radius) from a fixed point (central axis).

In Geometry, a circle is a conic section which is formed by a plane intersecting a double-napped cone that is perpendicular to the central axis because it forms an angle of 90° with the central axis.

Read more on conic section here: https://brainly.com/question/1287537

#SPJ2

Answer:

Value of middle 7 = [tex]\frac{1}{10}[/tex](value of 7 to the left of the middle 7)

Value of middle 7 = [tex]10[/tex](value of 7 to the right of the middle 7)

Step-by-step explanation:

7 in the middle of number [tex]0.777[/tex] is equal to [tex]\frac{7}{100}[/tex]

7 to the left of the middle 7 is equal to [tex]\frac{7}{10}[/tex]

So,

[tex]\frac{7}{100}=(\frac{1}{10}) \frac{7}{10}[/tex]

That is value of middle 7 = [tex]\frac{1}{10}[/tex](value of 7 to the left of the middle 7)

Also,

7 to the right of the middle 7 is equal to [tex]\frac{7}{1000}[/tex]

So,

[tex]\frac{7}{100}=(10) \frac{7}{1000}[/tex]

That is value of middle 7 = [tex]10[/tex](value of 7 to the right of the middle 7)

Answer:

Make sure you pass go!!!!!!!

Step-by-step explanation:

Answer: Kavitha is 18 and Lizzy is 27

Step-by-step explanation: 8 years ago, Kavitha was 10 and Lizzy was 19.

10 × 2 = 20

20 - 1 = 19

Kavitha is 9 years younger than Lizzy because 27 - 9 = 18

9514 1404 393

Answer:

  Kavitha is 19 and Lizzy is 28

Step-by-step explanation:

Let k and l represent the current ages of Kavitha and Lizzy.

  k = l -9 . . . . . Kavitha is 9 years younger

  l -8 = 2(k -8 -1) . . . . 8 years ago, Lizzy was 2 times as old as Kavitha was 9 years ago

  l -8 = 2(l -9 -9) . . . . substitute for k

  l -8 = 2l -36 . . . . . . eliminate parentheses

  28 = l . . . . . . . . . . . add 36 - l

  k = 28 -9 = 19

Kavitha is 19; Lizzy is 28.

Answer:

x =(-1+√-15)/2=(-1+i√ 15 )/2= -0.5000+1.9365i

Step-by-step explanation:

I got two answers

Answer:

Part 1

1.) -105

2.) 120

3.) 15

4.) -200

5.) 40

6.) 16

7.) 240

Step-by-step explanation:

1.) Do 7 x 15, which is 105, then since 15 is a negative and 7 is positive, the product is negative.

2.) Do 5 x 24, which is 120, and sine both 5 and 24 are negative, they cancel each other out and the product is positive.

3.) Do 75 / 5, which is 15, and since both 75 and 5 are negative, they cancel each other out and the quotient is positive.

4.) Do 25 x 8, which is 200, and since 25 is negative and 8 is positive, the product is negative.

5.) Do 120 / 3, which is 40, and since both 120 and 3 are positive, the quotient stays positive.

6.) Do 80 / 5, which is 16, and since both 80 and 5 are negative, they cancel each other out and the quotient is positive.

7.) Do 16 x 15, which is 240, and since both 16 and 15 are negative, they cancel each other out and the product is positive.

Hope this helps <3

Answer:

Explained below.

Step-by-step explanation:

The random variable X is defined as the number of stars in a given volume of space.

[tex]X\sim \text{Poisson}\ (\lambda=1)[/tex]

The probability mass function of X is:

[tex]p_{X}(x)=\frac{e^{-\lambda}\lambda^{x}}{x!}[/tex]

(7)

Compute the probability of exactly two stars in 16 cubic light-years as follows:

[tex]P(X=2)=\frac{e^{-1}\times 1^{2}}{2!}=\frac{e^{-1}}{2}=\frac{0.36788}{2}=0.18394\approx 0.184[/tex]

(8)

Compute the probability of three or more stars in 16 cubic light-years as follows:

[tex]P(X\geq 3)=1-P(X<3)\\\\=1-P(X=0)-P(X=1)-P(X=2)\\\\=1-\sum\limits^{2}_{x=0}[\frac{e^{-1}\times 1^{x}}{x!}]\\\\=1-0.36788-0.36788-0.18394\\\\=0.0803[/tex]

(9)

In 16 cubic light years there is only 1 star.

Then in 1 cubic light years there will be, (1/16) stars.

Then in 4 cubic light years there will be, 4 × (1/16) = (1/4) stars.

(10)

In 16 cubic light years there is only 1 star.

Then in 1 cubic light years there will be, (1/16) stars.

Then in t cubic light years there will be, [t × (1/16)] stars.

Answer:

Step-by-step explanation:

You know that all of the angles of a triangle have to add to equal 180°.

Therefore, (3x)+(2x+20)+(4x-20)= 180°

If you combine like terms you get:

9x=180°

Divide both sides by 9 to get:

X=20

Answer:

y= - 3cosx - 2

Step-by-step explanation:

Our max here is at 1, and the minimum is at - 5

The distance between the x-axis and these points are 1 and 5. 5 + 1/2 = 6/2 = 3, our amplitude. But let's double check. Our middle point is - 2 so...

- 5 - (- 2) = - 5 + 2 = - 3

The amplitude is rather - 3.

f(x) = Acos(Bx + C) + D

Using this we know B = 0, D = - 2 (the middle point), C = 0, and A = - 3 (amplitude). B = 0, and C = 0, as there is no horizontal/vertical shift

f(x) = Acos(Bx + C) + D

f(x) = - 3cosx + (- 2)

f(x) = - 3cosx - 2

Answer:

y= - 3cosx - 2

Step-by-step explanation:

Just Answered on A P E X Practice Assignment

Answer:

Anna's friend has 4 pets.

Step-by-step explanation:

Anna has 3 pets.

3-1=2

2x2=4

Answer:

Step-by-step explanation:

The billiard cue is 15 cm away from the table

The billiard cue touches the table at a point 60 cm off the ground

The slope is as per slope formula;

Thea answer is -4

Answer:

-4

Step-by-step explanation:

The foot of the billiard cue is 15 cm away from the table can be represented by the point (15, 0).

The top of the billiard cue touches the table at a point 60 cm off the ground can be represented by the point (0, 60)

The slope formula can be solve with the formula [ y2-y1/x2-x1 ]

60-0/0-15

60/-15

-4

Best of Luck!