Which statements about density curves are true? Check all that apply.
The mean of a density curve is indicated by X.
The mean of a density curve is indicated by u.
The standard deviation of a density curve is indicated by o.
The standard deviation of a density curve is indicated by Sx.
The density curve can be above and below the x-axis.

Answers

Answer 1

Answer:

The mean of a density curve is indicated by µ.

The standard deviation of a density curve is indicated by σ.

This is the answer Egde 2020

Answer 2

The statements which are true about density curves is the mean of a density curve is indicated by u and the standard deviation of a density curve is indicated by Sx.

What is a density curve?

The density curve is a way of representation of numerical distribution data in graphical manner, where the outcomes are continues. The density curve can not be below the x-axis or horizontal line of the graph.

In a density curve,

The mean of a density curve is indicated by μ (mu).The standard deviation of a density curve is indicated by Sx.The density curve can only be above x-axis and not below it.

Thus, the statements which are true about density curves is the mean of a density curve is indicated by u and the standard deviation of a density curve is indicated by Sx.

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Related Questions

Solve the inequality and complete a line graph representing the solution. In a minimum of two sentences, describe the solution and the line graph.

8 ≥ 3x + 5

Answers

X is less than or equal to 1 the line graph would be a line graph with the numbers -5 -4 -3 -2 -1 0 2 3 4 5 you would put a CLOSED dot on 1 and an arrow pointing left

The two sentences would be————

To get the solution you would first isolate the variable by subtracting five from both sides. To get three is greater or equal to three X then you would divide three by three to get one. Then you would plot that in a line graph by placing a closed dot on one which represents x is equal to or less than 1. Then you make an arrow pointing left because x is less than or equal to 1.

Which of the following is equal to square root 9•16
O A. 36
B. Square root 9•square root 16
C. 144
D.Square root 9/16

Answers

Answer:

Letter B

9.16

...........

.

A basketball team played five games. In those​ games, the team won by 7​ points, lost by​ 3, won by​ 4, lost by​ 2, and won by 9. What was the mean difference in game scores over the five​ games?

Answers

Answer:

3

Step-by-step explanation:

7-3+4-2+9=15

15/5=3

The mean difference in the game scores over the five games is = 5

The points achieved by the various team players =

won by 7, lost by 3, won by 4,lost by 2,won by 9.

To obtain the mean of the points achieved from the five

games the five scores are added together and divided by the number of games which is 5.

That is,

[tex] \frac{7 + 3 + 4 + 2 + 9}{5} [/tex]

[tex] \frac{25}{5} = 5[/tex]

Therefore the mean difference in game scores over the five games is = 5

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Hallar la pendiente de la recta que atraviesa los puntos (-4, 7) y (2, -8).

Answers

Es -5/2.
y^2-y^1/x^2-x^1

10. Look at the diagram. Which of the following is a pair of vertical angles?

Answers

Answer:

1 option is correct

Step-by-step explanation:

Angle AOB and DOC is vertically opposite angle

The first option is correct

Have a nice day :)

how many significant digits are there in 074.0030

Answers

Answer:

Step-by-step explanation:

6 significant digits

only the first zero is not counted.

Which of the following is not possible for a
system with one quadratic function and one
linear function?
O two solutions
O infinite solutions
O one solution
O no solution

Answers

Answer:

infinite solutions

Step-by-step explanation:

with a quadratic and linear system, you can only either get, one, two, or no solution.

The linear function can only pass the quadratic a max of 2 times.

y = 3x - 2
x - y = 4

Answers

Answer:

x=-1, y=-5

Step-by-step explanation:

y=3x-2 (1)

x-y=4 (2)

sub (1) into (2)

x-(3x-2)=4

x-3x+2=4

-2x=2

x=-1

sub x=-1 into (1)

y=3(-1)-2

 =-3-2

y = -5

Therefore: x=-1, y=-5 :))

Answer:

x = -1, y = -5

Step-by-step explanation:

y = 3x - 2

x - y = 4

x - y = 4

x - (3x - 2) = 4

x - 3x + 2 = 4

-2x + 2 = 4

-2x = 2

x = -1

x - y = 4

-1 - y = 4

-y = 5

y = -5

Check:

x - y = 4

-1 - (-5) = 4

-1 + 5 = 4

4 = 4

I need an answer asap

Answers

Answer:   The answer is 120

Step-by-step explanation:  you add 50+70 and u will get 120

Mr. Smith has an account balance of -$275.78. He deposits $539.20 into his account. What is Mr. Smith's account balance now? *

Answers

Answer:

$  263.42

Step-by-step explanation:

-275.78 + 539.20 = 263.42

The new balance in Mr. smith account will be $263.42.

What is a expression? What is a mathematical equation?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators. A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

We have Mr. Smith has an account balance of -$275.78. He deposits $539.20 into his account.

Assume that the new amount in his account will be [x]. Then -

[x] = 539.20 - 275.78

[x] = 263.42

Therefore, the new balance in Mr. smith account will be $263.42.

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Find the area of the isosceles triangle
Slope: 13cm
Base: 10cm

Answers

Answer:

65

Step-by-step explanation:

A=hbb

2=13·10

2=65

i need help with segments​

Answers

Answer:

∠ DBC = 16°

Step-by-step explanation:

∠ ABD + ∠ DBC = ∠ ABC , substitute values

2x + 15 + x - 30 = 123 , that is

3x - 15 = 123 ( add 15 to both sides )

3x = 138 ( divide both sides by 3 )

x = 46

Thus

∠ DBC = x - 30 = 46 - 30 = 16°

What is the F(x) formula

Answers

Answer:


f (x) = mx + b. f (x) is the value of the function. m is the slope of the line. b is the value of the function when x equals zero or the y- coordinate of the point where the line crosses the y-axis in the coordinate plane. x is the value of the x-coordinate.

Could someone help me with this math problem. I really need help I have a test tomorrow so I need help with this.

Answers

Answer:

A. x ≥ -3 and x < 2, or -3 ≤ x < 2

Step-by-step explanation:

Remember solid dot means include, open dot means not include.

x ≥ -3: this means x is greater and equal (includes) -3.

x < 2: this means x is less than 2 and does not include it.

Answer:

A

Step-by-step explanation:

So on the number line you see a closed circle at -3 and an open circle at 2.

Closed circle represents it's either [tex]\leq[/tex] or [tex]\geq[/tex]. Open circle represents < or >.

So the first part has a closed circle at -3 and goes towards the right side. Since it does that, it would be [tex]x \geq -3[/tex].

The second part has an open circle at 2 and goes towards the left side. Since it does that, it would be [tex]x < 2[/tex].

To combine it together, it would get [tex]-3 \geq x < 2[/tex].

Since option A is [tex]x \geq -3[/tex] and  [tex]x < 2[/tex], or [tex]-3 \geq x < 2[/tex], A would be the answer.

Hoped this helped! If not, please let me know and I'll try to explain more! <3

(1.2÷0.375−0.2)/(6 4/25 ÷15 2/5 +0.8) = (0.016÷0.12+0.7)/x

Answers

Answer:

x=1/3

read below to find out how I solved!

Step-by-step explanation:

break it down.

First do 1.2÷0.375−0.2 = 1.2.

it is now 1.2/(6 4/25 ÷15 2/5 +0.8) = (0.016÷0.12+0.7)/x

now do 6 4/25 ÷15 2/5 +0.8 = 3

it is now 1.2/3 = (0.016÷0.12+0.7)/x

now do 0.016÷0.12+0.7 and that is 5/6

now you have 1.2÷3 = 5/6 ÷ x

solve for x and you should get x = 1/3!!

The rate in the interest formula is given as a percentage, but it must be changed to a

Answers

a decimal. to do this you just take the percent, ex- 20%, and multiply it but .01 or move the decimal 2 spots to the left. 20%=.2

A dairy cow can produce up to 2,000 gallons of milk every 365 days. At this rate, a cow can produce x gallons of milk in 500 days. Which proportion should be used to find x

Answers

So if the cow can produce 2000 gallons of milk in 365 days, how many gallons can she produce in 1 day?
We find this by dividing 2000 by 365:

2000/365 = 5.4794 gallons of milk per day

Now, to find the amount of gallons she produces in 500 days, we simply multiply the number of gallons she produces in 1 day by 500:

5.4794 X 500 = 2,739.73 gallons in 500 days.

is y = 1/2x + 3 proportional

Answers

No not at all whatsoever

Answer:

most likely

Step-by-step explanation:

y=1/2x+3

substitute 4

y=2+3=5

substitute 6

y=3+3=6

Find the 17th term of the sequence. -11, -9, -7, -5, ...

Answers

Answer:

29

Step-by-step Explanation

29

Explanation:
Go two up each time.

This triangle is being rotated. The square where the three triangles meet is called the

Answers

Answer:

center point

Step-by-step explanation:

use quizlet

Need answer ASAP please hurry??

Answers

Answer:

The Car would release over 360 tons of carbon dioxide in 10 years.

36x10 = 360

Step-by-step explanation:

Hope this helps!

What is the slope of the line shown?

Answers

Answer:

M=(-3)

Step-by-step explanation:

Take two points on the line

(5,1) and (2,2)

the equation to find M is y2-y1/x2-x1

2-5=(-3)  2-1=1

(-3)/1=(-3)

Hope this helps =3

Evaluate the expression: m-3n when m=8, n=2

A. 10
B. 2
C. 14
D. 13

Answers

I think it’s B. 2

8-3(2)
Hi :)

B

m=8
n=2

m-3n

Put the numbers you have into the formula

8-3(2)

-3x2= -6

8 + -6 = 2


Hope this helps :)

Penolope earned $50 dollars in may and she earned $60 in June
what is the percent increase or decrease in penolope´s monthly earnings

Answers

Answer:

120

Step-by-step explanation:

y = -4x – 5
y = -2x + 10 solve using substitution show work please

Answers

Answer:

(- [tex]\frac{15}{2}[/tex], 25 )

Step-by-step explanation:

Given the 2 equations

y = - 4x - 5 → (1)

y = - 2x + 10 → (2)

Substitute y = - 2x + 10 into (1)

- 2x + 10 = - 4x - 5 ( add 4x to both sides )

2x + 10 = - 5 ( subtract 10 from both sides )

2x = - 15 ( divide both sides by 2 )

x = - [tex]\frac{15}{2}[/tex]

Substitute this value into either of the 2 equations and evaluate for y

Substituting into (2)

y = - 2(- [tex]\frac{15}{2}[/tex] ) + 10 = 15 + 10 = 25

Solution is ( - [tex]\frac{15}{2}[/tex], 25 )

4x3
--x-2
A. No Solution
B. (-1,-1)
C. -2,0)
D. (0,3)

Answers

Answer:

B. (-1,-1)

Step-by-step explanation:

Both lines are intersecting at this point.

Answer:

B. (-1,-1)

Step-by-step explanation:

[tex]y = 4x + 3 \\ y = - x - 2[/tex]

Arrange and solve

[tex] - 4x + y = 3 \\ x + y = - 2 \\( x,y)=( - 1, - 1)[/tex]

(

Which set of ordered pairs represents a function?

A. {(5,8), (-8, 2), (-1, -2),(-1, -6)}
B. {(-3,6),(-2,5), (6,2), (-3,7)}
C. {(-2,-2),(-9, -2), (7,-6), (-7, -5)}
D. {(-4,-4),(-8, -1),(4,5), (4,-4)}

Answers

Answer:

C

Step-by-step explanation:

each input has exactly one out put... brainliest plssss

C


dbdjektieidnsoefjeiwisjeks

simplifying radicals pt.2 please help ASAP and explain if possible

Answers

Answer: 5√10.

Step-by-step explanation:

250 is split into its prime factors as 2 * 5 * 5 * 5 which implies √250 = √(2 * 5 * 5 * 5). Now we can simplify this further by pulling out the number which is multiplied to itself. This gives √250 = 5 * √(2 * 5) = 5√10. Therefore the square root of 250 is √250 = 5√10.

The coldest temperature ever recorded on Earth is 135.8°F below 0, recorded
in Antarctica on July 21, 1983. The hottest temperature ever recorded
on Earth is 134°F, recorded in Death Valley, California, on July 10, 1913.
What is the difference between those two temperatures?

Answers

Answer:

-269.8

Step-by-step explanation:

Below 0 is negative.

Them do -135.8 - 134.

Elizabeth her family's dinner bill was $79.00. How much tip will her family give the waiter, if they tip 23%?

Help me please

Answers

Answer:

29.11

Step-by-step explanation:

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