The following data values represent a sample. What is the variance of the sample? X=9. Use the information in the table to help you.

The Following Data Values Represent A Sample. What Is The Variance Of The Sample? X=9. Use The Information

Answers

Answer 1

Answer: it’s 28 for sure

Step-by-step explanation:

Answer 2

Answer:28

Step-by-step explanation:


Related Questions

c. If h(x) = x2 − x − 12, the value of h(3) is __________.

Answers

Answer

h(x)= x^2-x-12

(3)^2-3-12

9-3-12

12-12

0

Step-by-step explanation:

The grocery store is having a sale on frozen vegetables. 4 bags are being sold for 11.96. At this rate, what is the cost of :

1 bag
9 bags

Answers

1 bag = 2.99

9 bags = 26.91

For a certain online store, the distribution of number of purchases per hour is approximately normal with mean 1,200 purchases and standard deviation 200 purchases. For what proportion of hours will the number of purchases at the online store exceed 1,400 ?

Answers

Answer: 0.1587

Step-by-step explanation:

Given : The distribution of number of purchases per hour is approximately normal with mean 1,200 purchases and standard deviation 200 purchases.

i.e. [tex]\mu=1200,\ \ \sigma=200[/tex]

Let X denotes the number of purchases per hour.

Then ,

[tex]P(X>1400)=P(\dfrac{X-\mu}{\sigma}>\dfrac{1400-1200}{200})\\\\=P(Z>1)\ \ \[Z=\dfrac{X-\mu}{\sigma}]\\\\=1-P(Z<1)\ \ \ [P(Z>z)=1-P(Z<z)]\\\\\ =1-0.8413\ \ [\text{By p-value table}]\\\\= 0.1587[/tex]

So, the proportion of hours will the number of purchases at the online store exceed 1,400 =0.1587

Consider M, N, and P. collinear points on MP. What is the difference between the ratio MN:NP and the ratio MN: MP?​ PLEASE HELPPPPPPP

Answers

Answer:

The amount between each. Since you didn't attachment any further information like the amount of M, N, and P or a graph chart- I'll only be able to give an example.  

Let's say M is equal to 3, N is equal to 1, and P is equal to 2. All together these spaces add up to 6 which can be evenly space out or distributed unevenly.  

Like M:N= 3:1 or N:P = 1:2. As you can tell all together (all you have to do is add 3&1 or 1&2) you'll get the result of 4 or 3 and they aren't similar. Let me know if this helps!  I know sometimes seeing technically terms and numbers can be difficult so I tried to explain with words as best I could. Good luck to you.

HELP PLEASE TIMED This graph displays a linear function. Interpret the constant rate of change of the relationship. Rate of change = BLANK​

Answers

Answer:

3

Step-by-step explanation:

The rate of change is just another way of saying slope.

The slope of a line is it’s rise over run.

We can see here that every time x increases by 1, y increases by 3. (This is where the triangle comes in handy).

Rise:3

Run:1

[tex]\frac{3}{1}=3[/tex]

So the rate of change is 3.

Hope this helped!

Answer:

is 3

Step-by-step explanation:

i got

- Do two points always, sometimes, or never determine a line? Explain

Answers

Answer:

Always

Step-by-step explanation:

if two points lie in a plane, then the entire line containing those points lies in that plane

25 POINTS!!!!! A cruise ship travels at a bearing of N35°E at 18 mph for 3 hours and changes course to a bearing of S66°E. It then travels 15 mph for 2 hours. Find the distance the ship is from its original position. Round your answer to the nearest hundredth.

Answers

Answer:

66.59 is the answer

Answer:

66.95

Step-by-step explanation:

Answer is 66.95

Anna's pulse rate is 30% higher than its normal rate of 70bpm. What is her pulse rate?

Answers

Answer:

  91 bpm

Step-by-step explanation:

  (70 bpm)(1 +30%) = 70·1.30 bpm = 91 bpm

Anna's pulse rate is 91 bpm.

3a +- 2b = 6b - 2a for a.

Answers

Answer: a=4b/5

Step-by-step explanation:

To solve for a, we want to use algebraic properties to isolate a.

3a+2b=6b-2a               [add both sides by 2a]

5a+2b=6b                     [subtract both sides by 2b]

5a=4b                           [divide both sides by 5]

a=4b/5

Now, we have found that a=4b/5.

Elizabeth claims that the only square root of 36 is 6. Which statement below disproves Elizabeth’s claim?

Answers

Answer:

The square root of a positive number can be a negative or positive value.

Step-by-step explanation:

Which fraction is simplified fraction of 28/56

Answers

Answer:

1/2

Step-by-step explanation:

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

28 * 2 = 56.

HELP PLEASE Which relation is a function of x? ​

Answers

Answer:

ok i did one of these before it was the 2nd or 3rd one

A triangle has vertices located at C(-1,3), A(-1,-3) and T(7,-3). What is the length of the longest side of the triangle ? Ps: please show me the work (IMPORTANT)

Answers

CA = 6
AT = 8
TC = ?

Area = 24

24 = 6 + 8 + ?
6 + 8 = 14
24 - 14 = 10

TC = 10

Answer: the length of the longest side is 10.

I’m so confused what it is asking? (see the attached image)

Answers

Answer:

sole it

the(<) it wants you to figure out each side and put the inequality in between what you get

Please help me out with this question

Answers

Answer:

no. 4

Step-by-step explanation:

how many solutions -4(x+5)=-4x-20

Answers

Answer:

Infinite number of solutions.  The equations and answers are the same no matter what number x you plug in.  

Step-by-step explanation:

-4(x + 5) = -4x - 20

-4x - 20 = -4x - 20

0 = 0

[tex]\text{Hello there! :)}[/tex]

[tex]\large\boxed{\text{Infinite solutions.}}[/tex]

[tex]-4(x + 5) = -4x - 20\\\\\text{Simplify:}\\\\-4(x) -4(5) = -4x - 20\\\\-4x - 20 = -4x - 20\\\\\\\\\text{Add 4x to both sides:}\\\\-4x + 4x - 20 = -4x + 4x - 20\\\\-20 = -20\\\\\text{Both sides of the equal sign are the same, so:}\\\\\\\text{Infinite solutions.}[/tex]

find the location of A' given that A is (3,7) reflect across the x-axis the location of A' is (,)​

Answers

Answer:

A' (3, - 7 )

Step-by-step explanation:

Under a reflection in the x- axis

a point (x, y ) → (x, - y ) , thus

A(3, 7 ) → A'(3, - 7 )

Question 9 (4 points)
Given that the two triangles shown below are similar, find the value of x
3
40°
60°
6
8
80°
5
40°
y

Answers

Answer:

x = 4.8

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below :)

find the zero of the function f(x) =-3x + 1

Answers

To find the zero of a function, we have to set f(x) equal to 0

0 = -3x + 1

Subtract 1 from both sides.

-1 = -3x

Divide both sides by -3

1/3 = x

Which shows how to find the value of this expression when X=-2 and y = 5?
(3xy-22
32 (-2)
54
3(-2)6
54
32 (5)
(-2)*
3
(2) 654

Answers

Answer:

it's the first one

Step-by-step explanation:

I got it right on edge

The requried, expression to find the value of the given expression when x =-2 and y = 5 is 3²(-2)⁶/5⁴. Option A is correct.

What does simplification mean?

In order to remove pointless terms, factors, or operations from an expression, arithmetic, and algebraic principles are applied. The objective is to get an expression that is simpler to use, manipulate, or solve. For instance, factoring, merging like terms, or applying the distributive property can all be used to simplify an algebraic statement.

Here,
Given expression,
= (3x³y⁻²)²

To find the solution of the above expression given value of x and y,
= (3(-2)³(3)⁻²)²
= (3²(-2)⁶/3⁴)

Thus, the required expression to find the value of the given expression when x =-2 and y = 5 is 3²(-2)⁶/5⁴. Option A is correct.

Find out more about simplification by visiting this link: brainly.com/question/12501526
#SPJ7

select the correct answer. what is the sum of -6 4/5 and 6 4/5? A. 12 4/5. B. 29/5 C. 0 D. -12 4/5​

Answers

Answer:

C.

Step-by-step explanation:

-6 4/5 and 64/5 are opposites or a zero pair so when you add them you get zero.

inverse sin of 13/7?

Answers

Answer:

0.03213586

Step-by-step explanation:

60 and 108 The GCF IS​

Answers

The greatest common divisor of these numbers is 12.

Answer:

Greatest common factor (GCF) of 60: 223

Greatest common factor (GCF) of 108: 22333

The Greatest Common Factor (GCF) is:   2 x 2 x 3 = 12

Step-by-step explanation:

To get the Greatest Common Factor (GCF) of 60 and 108 we need to factor each value first and then we choose all the copies of factors and multiply them.

Find three consecutive integers such that the sum of the 1st and 3rd is 60.

Answers

29,30,31 are the numbers

please help me out am so confused ​

Answers

Answer:

(i) 2197

Step-by-step explanation:

(i) 13^3

=  (10+3)^3

=  10^3 + 3^3 + 3(10)(3) (10+3)

=  1000 + 27 + 90(13)

=  1027 + 1170

= 2197

Similarly you can solve the other two.

A Toyota Prius and a Dodge Circuit leave an intersection at the same time. The Prius heads east at an average speed of 50 miles per hour, while the Circuit heads south at an average speed of 45 miles and hour. After 30 minutes, the two cars are about _____ miles apart. After 2 hours, the two cars are about ______ miles apart. Write an express for the distance, d (in miles) after t hours.

Answers

Answer:

33.634 ; 134.536 ; d = √[(50t)² + (45t)²]

Step-by-step explanation:

Given the following :

Toyota Prius = East at 50mph

Dodge Circuit = South at 45mph

Distance apart after 30 minutes :

Distance = speed * time

Distance moved by Prius = ( 50mph × 0.5hr) = 25 miles

Distance moved by Circuit = ( 45mph × 0.5hr) = 22.5 miles

Hence Displacement after 30 minutes :

d = √(25² + 22.5²)

d = √625 + 506.25

d = √1131.25

d = 33.634 miles

Distance apart after 2 hours :

Distance = speed * time

Distance moved by Prius = ( 50mph × 2hr) = 100 miles

Distance moved by Circuit = ( 45mph × 2hr) = 90 miles

Hence Displacement after 2 hours :

d = √(100² + 90²)

d = √10000 + 8100

d = √18100

d = 134.536 miles

Distance d in miles after t hours :

d = √[(50t)² + (45t)²]

What is 78,652 divided by 8 long division

Answers

It’s 9,831.5, nine thousand height hundred thirty one point five

Round to 3 digits 778520

Answers

the answer would be 779.

A golf course designer is creating a scale drawing of a new course on a coordinate grid and using vectors to describe the displacement from the starting point to the hole. For the first hole, the ball starts at the point (–15, –12). The first hole is at the point (–25, 6). The scale of the model is 1 unit = 20 yards. Which vector can be used to determine how far the first hole is from the starting point, and what is that length? Round the length to the nearest yard if necessary.
A. ⟨-10,18⟩; 412 yards
B. ⟨-10, 18⟩; 424 yards
C. ⟨-40, -6⟩; 809 yards
D. ⟨-40, -6⟩; 1,636 yards

Answers

Answer:

A. (-10,18); 412 yards

Step-by-step explanation:

Answer:

It's A

Step-by-step explanation:

What is the equation of the line

Answers

The equation of the line is y = (1/2)x + 2
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