Choose the statistic that is considered a measure of spread.

Mean
Standard deviation
Mode
Median

Answers

Answer 1

Answer:

The standard deviation is considered a measure of spread.

Step-by-step explanation:

Standard deviation is basically considered a measure of spread, measuring how far data values are from their mean.

Standard deviation helps in determining the nature of the variation of the data about the mean.

For instance, in certain data sets, we may observe the same mean, but their range could be different, and data values in one data set may have been closely concentrated near the mean than the other data set values.

For example,

considering the data set

[tex]15, 15, 15, 14, 16[/tex]

The given data set has a mean: 15

considering the second data set

[tex]2, 7, 14, 22, 30[/tex]

The given data set has also a mean: 15

But, the values in the second data set are clearly more spread out. When the values of a data set are not spread out largely, then the set will have a low standard deviation.

Therefore, the standard deviation is considered a measure of spread.


Related Questions

there are 12 inches in a foot how many square inches are in 1 1/2 feet

Answers

Answer:

144.

The reason is because 1 ft = 12 in, (1 ft)2 = (12 in)2 = 144 in2.

Is the value of the expression greater than 1, equal to 1, or less than 1?

(12/64)^0​

Answers

Answer:

The value of the expression [tex](12/64)^{0}[/tex] is equal to 1

Step-by-step explanation:

You can get this answer two ways:

1. Simply plug in [tex](12/64)^{0}[/tex] into your calculator exactly as it appears. You will get one, so therefore, the expression is equal to 1.

2. If you know your exponent rules, you'll know that anything to the power of 0 equals 1, so no matter the value in the parentheses, the answer will be equal to 1.

Hope this helps!

what is the answer to 66x10?

Answers

660 I hope it helps!!

Answer:

660

Step-by-step explanation:

66x10

=660.

So the answer is 660

The ending balance on an investment is $1,620.24. If the principal was invested at 8% for nine years, what was the principal?​

Answers

$942
Found this question on an old paper from school .

Solve 6+5c-2c+7-c equation

Answers

Answer:

2c+13

Step-by-step explanation:

i hope i helped:)

13-715x=130x
show work plzz

Answers

Answer:

Solving equation [tex]13-715x=130x[/tex] we get [tex]x= \frac{1}{65}[/tex]

Step-by-step explanation:

We need to solve the equation [tex]13-715x=130x[/tex]

Combining like terms and solving

[tex]13-715x=130x\\Adding \ 715x \ on \ both \ sides:\\13-715x+715x=130x+715x\\13=845x\\Divide \ both \ sides \ by \ 845\\\frac{13}{845}=\frac{845x}{845}\\=>x= \frac{1}{65}[/tex]

So, solving equation [tex]13-715x=130x[/tex] we get [tex]x= \frac{1}{65}[/tex]

I bet I will mark you as a brainiest if u get this right

To make porridge, Goldilocks mixes together 3 bags of oats with 1 bag containing 20% wheat bran and 80% oats. All the bags have the same volume. What percentage of the volume of Goldilocks' porridge mixture is wheat bran?

5%
6%
20%
26%
60%
15%
8%

Answers

Answer:

6%

Step-by-step explanation:

This is an honest guess just because you are not given the content of 2 out of the 3 bags. When starting at 100 percent of the makeup of the porridge you can then divide that by 3 to get the content of 1 bag. You will get around 33 then you find what 20% of 33 is which is closest to either 6 percent.

can someone help me please, its geometry

Answers

Answer:

2n

Step-by-step explanation:

Pythagoras [tex]a^{2} + b^{2} = c^{2}[/tex]

2 squared plus 2 squared = 8 but you need to find out the root of 8,

square root of 8 is a surd, so answer in that

Answer:

4n

Step-by-step explanation:

a^2+b^2=c^2

2n^2+2n^2=c^2

4n^2=c^2

sqrt 4n^2=sqrt c^2

4n=c


Please help me find the missing length

Answers

Answer:

The tower is 48 ft tall.

Step-by-step explanation:

Refer to the figure attached.

Triangle ACD is similar to triangle BCE.

This means the proportion to some sides is the same, for example:

[tex]\displaystyle \frac{CE}{CD}=\frac{BE}{H}[/tex]

Substituting the values:

[tex]\displaystyle \frac{8}{64}=\frac{6}{H}[/tex]

Multiplying by 64H:

[tex]8H=64*6[/tex]

Dividing by 8:

[tex]H=64*6/8=48[/tex]

The tower is 48 ft tall.

Solve the equation. If exact roots cannot be found, state the consecutive integers between which the roots are located.


x = -3 and 1
x = -2
No real roots.
x = 3 and -1

Answers

Answer:

No real roots.

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Standard Form: ax² + bx + c = 0Quadratic Formula: [tex]x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]

Algebra II

Imaginary Roots: √-1 = i

Step-by-step explanation:

Step 1: Define

-3x² + 2x = 1

Step 2: Rewrite in Standard Form

Subtract 1 on both sides:                    -3x² + 2x - 1 = 0

Step 3: Define

a = -3

b = 2

c = -1

Step 4: Find roots

Substitute in variables:                    [tex]x=\frac{-2\pm\sqrt{2^2-4(-3)(-1)} }{2(-3)}[/tex]Exponents:                                       [tex]x=\frac{-2\pm\sqrt{4-4(-3)(-1)} }{2(-3)}[/tex]Multiply:                                            [tex]x=\frac{-2\pm\sqrt{4-12} }{-6}[/tex]Subtract:                                           [tex]x=\frac{-2\pm\sqrt{-8} }{-6}[/tex]

Here we see that we cannot take the square root of a negative number. We will get no real roots and only imaginary ones.

what is the value of X​

Answers

Answer:

x = 12

Step-by-step explanation:

the two equations shown should add up to 180. so I did this equation: (10x-20)+ (6x+8) = 180 and I solved for x

John completed 24 math problems in 6 minutes. How many does he complete per minute

Answers

Answer:

it would take him a minute to complete 4 problems

Answer:

4 problems per minute.

Step-by-step explanation:

Divide 24 by 6 and you would get 4.

Check: 6 x 4 = 24

6, 12, 18, 24

Hope this helps!

~Jerc~

what does -4(2x+9) equal

Answers

Answer:

-8x-36

Step-by-step explanation:

-4(2x+9)

distribute: -4(2x+9)= -8x-36

-8x-36 HOPE THIS HELPSSSSSSSSS

I love you. You are worth it.

Answers

Answer:

Thanks

Step-by-step explanation:

f(0) = -5, f(4) = -3

Answers

Answer:

y = [tex]\frac{1}{2}[/tex] x - 5

Step-by-step explanation:

Given f(0) = - 5 and f(4) = - 3 , then we have the coordinate points

(0, - 5) and (4, - 3)

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, - 5) and (x₂, y₂ ) = (4, - 3)

m = [tex]\frac{-3+5}{4-0}[/tex] = [tex]\frac{2}{4}[/tex] = [tex]\frac{1}{2}[/tex]

The line crosses the y- axis at (0, - 5) ⇒ c = - 5

y = f(x) = [tex]\frac{1}{2}[/tex] x - 5 ← equation of line

Jesse wants to buy a guitar that cost $2000 however he cannot afford the full payment and in order to take you home he needs to leave a 12% down payment how much does Jessie need to pay to take the guitar home

Answers

Answer:

$240

Step-by-step explanation:

Step one:

given data

we are told that the cost of the guitar is $2000

and that 12% of the cost must be paid for Jesse to take the guitar home.

Hence we aim to know what 12% of $2000 is

Step two:

The expression is

=12/100*2000

=0.12*2000

=240

This means that Jesse must pay $240 before he can take the guitar home

What do static electricity and current electricity have in common.

Answers

Answer: Static electricity is uncontrolled electrons passing from one body to another in sudden, momentary movements, while current electricity is when the electrons are controlled by moving along a path together.

HAVE A BLESSED DAY!!!!

V = r2h what is the equation for h?

Answers

I believe the equation is h= v/r^2

The current exchange rate for the mexican peso to the us dollar is 3 to.if a tourist dinner bill was 15 pesos,what is the amount in the us dollar​

Answers

Answer:

5

Step-by-step explanation:

3x=15

x=15/3

x=5

PLEASE HELP ME

Identify the polynomial divisor, dividend, and quotient represented by the synthetic division.



Divisor:

A. –3

B. 3

C. x – 3

D. x + 3


Dividend:

A. 2x3 + 11x2 + 18x + 9

B. -6x3 - 15x - 9

C. 2x2 + 5x + 3


Quotient:

A. 2x4 + 11x3 + 18x + 9

B. 2x3 + 5x2 + 3x

C. 2x2 + 5x + 3

Answers

Answers For Entire Assignment!!

Page 1 D, A, C

Page 2 C

Page 3 B, A

Page 4 C, D, F

Page 5 Identify the factor x + 3 from the given root –3.

Use synthetic division to divide the polynomial by x + 3.

Use the bottom row of the synthetic division as coefficients in the quadratic 2x2 + 3x – 2.

Factor the quotient to find the two other factors: x + 2 and 2x – 1.

Page 6 B, C, E

Page 7 B, 1.3

Page 8 The student used k = –5 instead of k = 5. And the student did not use a placeholder zero for the x2 term. Also, x – 5 is a factor because there is no remainder when the division is performed correctly.

Trust The Milk. Get that hundo.


What is the range of: 21, 35, 17, 27, 32, 12 and 30

Answers

Answer:

Please mark as brainliest!!

Step-by-step explanation:

range = maximum value -minimum value

35-12=23

A jewelry store is having a 50% off salefor all necklaces. During the sales, what is the sale priceof a necklace,that regularlycost$49?

answer asap i will make brainliset !

Answers

The answer is $24.50

Jace is working two summer jobs, making $18 per hour lifeguarding and
making $10 per hour washing cars. In a given week, he can work a maximum
of 13 total hours and must earn no less than $170. If x represents the number
of hours lifeguarding and y represents the number of hours washing cars,
write and solve a system of inequalities graphically and determine one
possible solution.

Answers

Answer:

One possible solution is Jace spends 5 hours lifeguarding and 8 hours washing cars

Step-by-step explanation:

The parameters of the two summer jobs Jace is working are;

The amount Jace makes for Lifeguarding  = $18 per hour

The amount Jace makes for washing cars = $10 per hour

The number of hours he can work a week ≤ 13 hours

The amount he must earn in a ≥ $170

Whereby we have;

x = The number of hours Jace spends lifeguarding

y = The number of hours Jace spends washing cars

The system of inequalities are;

x × 18 + y × 10 ≥ 170

x + y ≤ 13

Making y the subject of the formula of both inequalities gives;

For the first inequality, we have;

x × 18 + y × 10 ≥ 170

10·y ≥ 170 - 18·x

y ≥ 170/10 - 18/10·x

y ≥ 17 - 1.8·x

For the second inequality, we have;

x + y ≤ 13

y ≤ 13 - x

Graphing both inequalities is drawn using Microsoft Excel

Equating both inequalities, given in relation to the y-values, the point where the two lines representing both inequalities meet is given as follows;

17 - 1.8·x = 13 - x

17 - 13 = 1.8·x - x

4 = 0.8·x

x = 4/0.8 = 5

y ≤ 13 - x gives;

y ≤ 13 - 5

y ≤ 8

Given that both relationships are either ≤ or ≥, we have the point where both inequalities meet is one possible solution

Therefore;

One possible solution is x = 5 hours, y = 8 hours

The number of hours Jace spends lifeguarding = x = 5 hours

The number of hours Jace spends washing cars = y = 8 hours.

Morgan is in the business of manufacturing phones. She pays a cost of $200
per phone produced for materials and labor and also must pay a daily fixed
cost of $400 to rent the building and equipment. Make a table of values and
then write an equation for C, in terms of p, representing total cost, in dollars,
of producing p phones in a given day.

Answers

Answer:

C = 200p + 400

Step-by-step explanation:

Because C is the cost of a given day, 400 acts as a y-intercept.

400 is the initial fee paid then 200 per each phone manifactured, meaning that 200 is the slope.

Choose the graph that has a slope of 1/3 and a y-intercept of 1.​

Answers

Answer:

d

Step-by-step explanation:

The slope is positive which makes the graph increase

Answer:

Step-by-step explanation:

(c). The slope is [tex]-\frac{1}{3}[/tex] and y-intercept is 1

(d). The slope is 2 and y-intercept is 1

-- I assume, that the answer on given task ( Choose the graph that has a slope of 1/3 and a y-intercept of 1.​ ) is (a) or (b) --

3

EACH STUDENT BELOW MADE AN ERROR IN THEIR WORK WHEN SOLVING THEIR

EQUATION. USE THE TYPING TOOL TO ANSWER THE QUESTIONS IN EACH WHITE BOX.

CULLEN

SERAPHINA

JASPER

-6n + 22 = -4n + 14

- 10n + 22 - 14

-10n = -8

8.4y - 6.8 - -3.2y + 16.4

11.6y - 6.8 - 16.4

11.6y = 23.2

y = 11.6

26 - 32 - - +32

26 - 32 = 32

n - 0.8

b-8

VARIABLES ON BOTH SIDES

DESCRIBE CULLEN'S MISTAKE

DESCRIBE SERAPHINA'S MISTAKE:

DESCRIBE JASPER'S MISTAKE:

WHAT IS THE CORRECT SOLUTION?

WHAT IS THE CORRECT SOLUTION?

WHAT IS THE CORRECT SOLUTION?

More the detto, 2019

Answers

Answer:

1) -6·n - (-4·n) = -10·n (The double negative should change to positive  + sign here)

-6·n - (-4·n) = -6·n + 4·n = -2·n

The correct solution is;

n = 4

2)  y = 23.2 - 11.6 = 11.6, y = 11.6 (Seraphina's mistake is that subtraction was done rather than the division as shown here)

The correct solution is;

y = 2

Step-by-step explanation:

The given parameters are

-6·n + 22 = -4·n + 14

22 -  14= 6·n - 4·n = 2·n

8 = 2·n

n = 8/2 = 4

Cullen's mistake is as follows;

-6·n + 22 = -4·n + 14

-6·n - (-4·n)   =  -22 + 14

-6·n + 4·n   =  -22 + 14 (The double negative should change to positive  + sign here)

-2·n   =  -8

n = -8/(-2) = 4

n = 4

2) 8.4·y - 6.8 = -3.2·y + 16.4

8.4·y - (-3.2·y) = -(- 6.8) + 16.4

11.6·y = 23.2 → y = 23.2 - 11.6 = 11.6, y = 11.6 (Seraphina's mistake is that subtraction was done rather than the division as shown here)

y = 23.2/11.6 = 2

y = 2

3) The last equation has parts missing

Answer:

the answer is y=3.88894

Step-by-step explanation:

In a certain country, the true probability of a baby being a girl is 0.479. A mound the next four randomly selected births in the country, what is the probability that at least one of them is a boy ? Round to 3 decimal places as needed

Answers

Answer:

0.947

Step-by-step explanation:

We are told that the true probability of a baby being a girl is 0.479.

This means that probability of a baby being a boy is;

p = 1 - 0.479

p = 0.521

Now,using binomial probability distribution formula we can solve this problem.

P(X=x) = C(n, x) × p^(x) × (1 - p)^(n - x)

We are told that a mound the next four randomly selected births in the country, what is the probability that at least one of them is a boy.

This is;

P(X ≥ 1) = P(1) + P(2) + P(3) + P(4)

P(1) = C(4, 1) × 0.521^(1) × (1 - 0.521)^(4 - 1)

P(1) = 0.229

P(2) = C(4, 2) × 0.521^(2) × (1 - 0.521)^(4 - 2)

P(2) = 0.3737

P(3) = C(4, 3) × 0.521^(3) × (1 - 0.521)^(4 - 3)

P(3) = 0.27096

P(4) = C(4, 4) × 0.521^(4) × (1 - 0.521)^(4 - 4)

P(4) = 0.0737

Thus;

P(X ≥ 1) = 0.229 + 0.3737 + 0.27096 + 0.0737

P(X ≥ 1) = 0.94736

P(X ≥ 1) ≈ 0.947

Solve for j.
3 + 4
2
-3

Answers

Answer:

Hello!

Step-by-step explanation:

How do we solve for j when there is no equation with j in it to solve for j. Hope we can help you with this when we get a equation!

CAN SOMEONE HELP ME WITH THOSE 2 questions PLEASE !!!!!!

Answers

1. Jenna is buying fruits.The number of apples she buys plus every two pears 3 times.. is equal to 24.

Ricardo bought 3 pounds of gummy bears for $7.77. What is price per pound for the gummy bears?

Answers

Answer: To find the price per pound we must divide 7.77 by 3, 7.77/3=2.59. So the price per pound for the gummy bears is 2.59$.

Answer:

2.59

Step-by-step explanation:

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