The opera theater manager believes that 23#% of the opera tickets for tonight's show have been sold. If the manager is accurate, what is the probability that the proportion of tickets sold in a sample of 869869 tickets would differ from the population proportion by less than 3%3%

Answers

Answer 1

Answer:

0.9642

Step-by-step explanation:

Sample proportion p follows a Normal distribution with mean = p0 = 0.23 and Standard deviation = √P0(1 - P0) / n = √0.23(1-0.23) / 869 = 0.0143

Then Z = p - mean / Standard deviation = X - 0.23 / 0.01343

P(0.2<p<0.26) = P(p<0.26) - P(p<0.2)

= P(p-023/0.0143 < 0.26-0.23/0.0143) - P(p-0.23/0.0143 < 0.2-0.23/0.0143)

= P(Z < 2.1) - P(Z < -2.1)

= 0.9821 - 0.0179

= 0.9642


Related Questions

Calculate the following speed.

Distance = 800 m, time = 50 sec

Answers

Answer:

16m per second

Step-by-step explanation:

Answer:

16 m/sec

Step-by-step explanation:

Formula

S = d/t

s = 800/50

s = 16 m/sec

Ms. Strauss fills gum and trinket machines in front of grocery stores. In the trinket machine, there tattoos and stickers. If Mrs. Strauss puts 25 tattoos and 45 stickers in a machine, what is the ratio of stickers to all of the trinkets in the machine

Answers

i believe that it is 9:14

stickers:trinkets
45:70 = 9:14

When twice a number is subtracted from 34, the result is 16. Find the number.
O A. 8
OB. 16
C. 12
OD. 9

Answers

Answer:

9

Step-by-step explanation:

34 - 16 = 18

18 ÷ 2 = 9

you're welcome! I'm a 6th grader btw!

Answer:

9

Step-by-step explanation:

34-2x=16

-2x=16-34

-2x=-18

2x=18

X=18/2

X=9

So the answer is 9.

9.5 +5² - 2² (-3)rasied to the 2nd power

Answers

-1.5 dndekekckcl fkckkcekekxk k

Kaelyn is reading a book. The books thickness is 25 millimeters. How many of these books would fit on a shelf that is 1 meter long?

Answers

40

1000/25=40

You’re welcome

The number of books that can be fit on a shelf is 1 meter long and will be 40.

What is Algebra?

Algebra is the study of mathematical symbols, and the rule is the manipulation of those symbols.

Kaelyn is reading a book.

The book's thickness is 25 millimeters.

Then the number of the books that can be fit on a shelf is 1 meter long will be

Let x be the number of the books.

The thickness of the book in meters will be 0.025 m.

Then we have

0.025x = 1

         x = 1 / 0.025

         x = 40

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

Which expression is the additive inverse of 25?

Answers

Answer:it’s actually very simple it’s A.

Step-by-step explanation: anything that is below one is negative that’s how I got my answer.

Answer:the answer is A

Step-by-step explanation:i did the test

13 is 26%of what number

120 is 30% of what number

Answers

50 and 400 do you need me to explain

Answer:

1. 50%

2. 400

which set of factors matches theses partial products? 3x50=150. 3x7=21

Answers

Answer:

ye

Step-by-step explanation:

rationalize the denominator of 1 /√3​

Answers

[tex]\huge\sf\underline{\purple{❥}\pink{Q}\orange{U}\blue{E}\red{S}\green{T}\purple{I}\pink{O}\red{N}}[/tex]

rationalize the denominator of 1/√3

[tex]\huge\sf\underline{\purple{❥}\pink{A}\orange {N}\blue{S}\red{W}\green{E}\purple{R}}[/tex]

[tex] \frac{1}{ \sqrt{3} } \\ \\(to \: rationalize \: the \: denominator \\ we \: have \: multiply \: \frac{1}{ \sqrt{3} } \: to \: the \:given \: fraction \: \: \: ) \\ = \frac{1}{ \sqrt{3} } \times \frac{1}{ \sqrt{3} } \\ = ( \frac{1}{ \sqrt{3} } ) {}^{2} \\ = \frac{1}{3} [/tex]

HOPE IT HELPS YOU..

Help please

Here is a triangular prism.
7.8 cm
16 cm
5.4 cm
Work out the volume of the prism in cm.
Give your answer correct to 3 significant figures.

Answers

Answer:

243cm^3

Step-by-step explanation:

By Pythagoras' Theorem,

height of the prism ^2 + 5.4^2 = 7.8^2

height of the prism = ±√(7.8^2 -5.4^2) = ±5.6285cm (5s.f.) (rej. - 5.6285 since height > 0cm)

volume of the prism = 1/2 x 5.4 x 5.6285 x 16 = 243cm^3 (3s.f.)

This is a question on mensuration. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

Of the 482 graduating seniors at Palmdale High School, approximately 5/8 are going to college, and approximately 1/2 of those going to college are going to an in-state school. Which of the following is the closest estimate for how many of the graduating seniors are going to an in-state school?

Answers

Answer:A

Step-by-step explanation:

trust

Write 1,054 thousand in standard form.

Answers

Answer:

1054

Step-by-step explanation:

1000+50+4

Which integer represents a temperature of 9 degrees below freezing?

Answers

Answer:

Step-by-step explanation:

Freezing is 32 degrees F.

32-9= 23 degrees F.

Sheila picks for 1 1/4 pounds of blueberries for $10 how many pounds can she pick for $1​

Answers

Answer:

0.125 pounds of blueberries

Step-by-step explanation:

Trust me

Answer:

1/8

Step-by-step explanation:

1 1/4=1.25

1.25/10=0.125

0.125 in the simplest fraction form is 1/8

hope this helps :3

if it did pls mark brainliest

Find the lcm of 15,30 and 105

Answers

Answer:

210

Step-by-step explanation:

15=3•5
30=2•3•5
105=3•5•7

thus the lcm of 15, 30, 105 is 2•3•5•7=210

f(x)=6x+5 and g(x)=2x-4

Answers

Step-by-step explanation:

1.)you find

f(g(x))

2)set up the composition function and evaluate

f(2x+4) = -12x - 19

The ratio of the number of people who own a Samsung Galaxy to the number of people
who own an iPhone is 3 : 5. If 1,000 more people own an iPhone than a Samsung
Galaxy, how many people own each type of phone?

Answers

Answer:

answer and explanation below

Step-by-step explanation:

that means 2/5 is 1000 so 1/5 is 500 so 500times 3/5 is 500 times 3

so galaxy=1,500 and iphone=2,500 and 1,500/2,500 gets reduced to 3/5 so it is rigth

What is Point-Slope Form? What is Slope Intercept Form? What is the Slope Formula?
i included pictures please help it closes tonight

Answers

Answer:

Point slope form: y-y₁=m(x-x₁)

Slope-Intercept form is y=mx+b....

Slope formula is m=y-y/ (over) x-x

Step-by-step explanation:

MULTI-QUESTION
What is the rise from point A to point D?
What is the run from point A to point D?
Write the fraction of rise over run from A to D (reduce if possible)
Find the rise from Point C to point B.
Find the run from Point C to Point B.
Write the fraction of rise over run from C to B.
Does the line have a positive or negative slope?
What is the slope of line AD?

Answers

Answer:

See below

Step-by-step explanation:

What is the rise from point A to point D?

8 units

What is the run from point A to point D?

4 units

Write the fraction of rise over run from A to D (reduce if possible)

8/4= 2

Find the rise from Point C to point B.

2 units

Find the run from Point C to Point B.

1 unit

Write the fraction of rise over run from C to B.

2/1=2

Does the line have a positive or negative slope?

Positive

What is the slope of line AD?

Slope = rise/run = 2

Nov 27, 8:06:26 PM
Find the Area of the figure below, composed of a rectangle and a semicircle. Round to
the nearest tenths place.
14
10
Answer:
Submit Answer

Answers

Answer:

The area of given figure is: 179.3

Step-by-step explanation:

The figure consists of a rectangle and a semi-circle

The length of rectangle is 14 and width is 10.

The width of rectangle is also the diameter of the semi-circle.

So,

d = 10

[tex]r = \frac{d}{2} = \frac{10}{2} = 5[/tex]

Area of Semi-Circle:

[tex]C =\frac{ \pi r^2}{2}\\= \frac{3.14 * (5)^2}{2}\\=\frac{3.14*25}{2}\\=\frac{78.5}{2}\\= 39.25[/tex]

Area of Rectangle:

[tex]R = Length * Width\\R = 10*14\\R = 140[/tex]

The total area will be the sum of area of rectangle and the area of semi-circle

So,

[tex]Total\ Area = C + R\\= 39.25 + 140\\=179.25[/tex]

Rounding off to nearest tenth

The total area is: 179.3

Evaluate the surface integral SSs (x + y + z)ds, s is the parallelogram with parametric equations x = u + v, y = u - v, z = 1 + 2u +v, 0 <= u <= 2, 0 <= v <=1

Answers

The surface element is

dS = || ∂r/∂u  x  ∂r/dv || du dv

where

r (u, v) = x (u, v) i + y (u, v) j + z (u, v) k

r (u, v) = (u + v) i + (u - v) j + (1 + 2u + v) k

is the vector parameterization for the surface S.

The normal vector to the surface is

r/∂u  x  ∂r/dv

… = (i + j + 2 k)  x  (i - j + k)

… = 3 i + j - 2 k

and has norm

|| ∂r/∂u  x  ∂r/dv || = √(3² + 1² + (-2)²) = √(14)

Now compute the integral:

∫∫ (x + y + z) dS = √(14) ∫₀¹ ∫₀² ((u + v) + (u - v) + (1 + 2u + v)) du dv

… = √(14) ∫₀¹ ∫₀² (3u + v + 1) du dv

… = √(14) ∫₀¹ (3/2 u² + uv + u) |₀² dv

… = √(14) ∫₀¹ (8 + 2v) dv

… = √(14) (8v + 2v²) |₀¹

… = 10 √(14)

4x - 3y = 1
-8x + 6y = -2

Answers

Answer:

x = infinite amount of solutions

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Algebra I

Solving systems of equations using substitution/eliminationSolving systems of equations by graphing

Step-by-step explanation:

Step 1: Define systems

4x - 3y = 1

-8x + 6y = -2

Step 2: Rewrite systems

-8x + 6y = -2

Add 8x to both sides:                   6y = 8x - 2Divide 6 on both sides:                y = 4/3x - 1/3

Step 3: Redefine systems

4x - 3y = 1

y = 4/3x - 1/3

Step 4: Solve for x

Substitution

Substitute in y:                         4x - 3(4/3x - 1/3) = 1Distribute -3:                            4x - 4x + 1 = 1Combine like terms:                1 = 1

Here we see that 1 does indeed equal 1.

∴ x = all real numbers/infinite amount of solutions

Step 5: Graph

Check the systems.

We see that the 2 equations are the same line.

Vanessa made some purchases at Kroger. She bought two containers of blueberries for $3.25 each, three containers of strawberries for $2.50 each and one container of raspberries for $5.94. If sales tax is 3 ½%, how much will Vanessa pay for her items? Round to the nearest hundredth. Include your units

Answers

Add up all her items first
$3.25 + $2.50 + $5.94 = $11.69
Sale tax = 0.035
11.69 * 0.035 = 0.41
11.69 - 0.41 = $11.28

PLEASE PLEASE PLEASE HELP​

Answers

Answer:

some dumb mod deleted my answer because i didnt show work. Who cares about the work everyone just wants the answers.

55.) A.9 B. 29

57.) SAS

Step-by-step explanation:

could someone please help me with #7 and #8?

Answers

Answer: I'm not sure If i'm right because I did this since 8th grade.

For number 7, I think it would be (the equation form)= 6 x  +  16

For number 8, I think it would be nothing because there is no solution.

Hope this helps:)

7. Plug in 3x + 8 for y in second equation
2(3x + 8) = 6x + 16
6x + 16 = 6x + 16
It would be all solutions

8. Plug in 4x + 5 for y in second equation
12x - 3(4x + 5) = 9
12x - 12x - 15 = 9
12x cancels out
-15 = 9
There would be no solution

Four siblings have a dog walking business. The table shows the hours worked by sibling. sibling earns $25.50 per hour and the total number of hours worked is represented by 10h + 15, where h represents the number of hours Michael worked. Sibiling Hours Worked Martin 2. 5h +3 Emillo 4(h – 2) Michael Mario 31 What was the total amount the siblings earned?​

Answers

Answer:

I couldn't find out how many hours Michael worked but the total amount is $1504.50

Step-by-step explanation:

What is the solution to the system: ax+y=18 and 4ax-y=12? Use elimination. Put the answer as an ordered pair. Show work on the next question. You have 3 unknowns and only 2 equations so you can have the variable "a" in your solution

Answers

Answer:

Ax=6

Y=12

Therefore a=6, x=1, y=12

Answer:

{([tex]\frac{6}{a}[/tex],12)}

Step-by-step explanation:

[tex]\left \{ {{ax+y=18} \atop {4ax-y=12}} \right.[/tex]

[tex]5ax = 30[/tex]

[tex]x = \frac{6}{a}[/tex]

[tex]a(\frac{6}{a}) + y = 18[/tex]

6 + y =18→y=12

[tex]4a(\frac{6}{a}) - 12 = 12[/tex]

6 - 12 = 12 → 12 = 12 true  x=[tex]\frac{6}{a}[/tex]  y=12

hurry and answer please

Answers

It's c (48)

because if you divide all of them its 3

Miranda invited 117 guests to a charity event. Miranda is renting tables that seat 9 guests at each table. If each table costs ​$4 to​ rent, how much will Miranda spend to rent the​ tables?

Answers

Answer: $468.00

Step-by-step explanation:

14. The first tree on the left is 8cm tall and is 30cm from the vanishing point. If the third tree is 20em from the

vanishing point, how tall is it?

d.

160 cm

8 cm

C.

b. 0.1875 cm

a.

5.3 cm

Answers

Answer:

5.3cm

Step-by-step explanation:

Step one:

given data

First tree

the tree is 8cm tall

and 30cm from the vanishing point

Third  tree

let the tree be x cm tall

and 20cm from the vanishing point

Step two:

if 8cm tree will be 30cm at the vanishing point

then x cm tree will be 20cm at the vanishing point

cross multiply we have

x= (20*8)/30

x=160/30

x=5.3cm

The third tree is 5.3cm tall

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