Mathematics High School

Suppose you know that the prices paid for cars are normally distributed with a MEAN or $17,000 and a STANDARD DEVIATION of $500. Use the EMPIRICAL RULE to find the percentage of buyers who paid

Answers

Answer 1

Complete question :

Suppose you know that the prices paid for cars are normally distributed with a MEAN or $17,000 and a STANDARD DEVIATION of $500. Use the EMPIRICAL RULE to find the percentage of buyers who paid between 15500 and 17000

Answer:

49.85%

Step-by-step explanation:

Mean = 17000

Standard deviation = 500

Obtain the Z score, which is the number of standard deviations from the mean :

((17000 - 17000) / 500) = 0

((15500 - 17000) / 500) = - 3

-3 to 3 = (3 standard deviations)

However,

The value here is (-3 to 0) ; which is only 3 standard deviations to the left.

3 standard deviation = 99.7% (empirical rule)

Since it is only (-3 to 0) ; which is only 3 standard deviations to the left. ; the percentage will be halved

99.7% / 2 = 49.85%

Hence, percentage of buyers who paid between 15500 and 17000 is 49.85%

Related Questions

The two legs of a right triangle measure 7 inches and 5 inches. Find the measure of the acute angle that is included between the longer leg and the hypotenuse. WILL GIVE BRAINIEST TO FIRST RIGHT ANSWER

Answers

Answer:

44.4 degrees

Step-by-step explanation:

Given the following

Hypotenuse = 7

Longer leg = 5 (adjacent])

Let the acute angle angle between both sides be x

According to SOH CAH TOA

Cos theta = adj/hyp

Cos x = 5/7

x= arccos (5/7)

x = arccos (0.7143)

x = 44.4degrees

Hence he measure of the acute angle that is included between the longer leg and the hypotenuse is 44.4 degrees

an onion soup recipe calls for 3 2/3 cups of chopped onions. katrina has already chopped 1 1/3 cups of onions. she wants to know how many more cups she needs to chop. HELP PLS

Answers

She need 1 2/3 more cups

Hope this helped :3

A binder is 9 inches wide, 12 inches long and 1.5 inch thick. what is the volume of documents the binder can hold?

Answers

Answer:

162 square inches

Step-by-step explanation:

9*12*1.5

Answer:

162 cubic inches

Step-by-step explanation:

9 times 12 times 1.5

Please someone help me! If sinα*cosα=-0.5 then what's the value of sin^4α+cos^4α and sin^6α+cos^6α?

Answers

HEY MATE check the attachment :)

Find the surface area of each figure.

Answers

Answer:

1=21yds. 2.=16m 3.=16ft 4.=3cm

This is for today someone can help me pls!!!

Answers

Answer:

sdf

Step-by-step explanation:

sdfgh

A helicopter flies 665 feet above ground. What is the measure of the angle of depression fro t the helicopter to the girls line of sight

Answers

Answer:

67°

Step-by-step explanation:

CHECK THE ATTACHMENT FOR THE FIQURE

From, trigonometry

tan(θ) = opposite/ adjacent

✓The helicopter is 665 feet from ground.

✓Distance of the helicopter and the line of sight of the girl will be the OPPOSITE SIDE, which is

(665ft - 5 ft)

= 600 ft

✓ from the figure, we can see the distance on the Horizontal side which is the ADJACENT SIDE as ( 280 ft)

✓angle of depression can be calculated as

tan(θ) = opposite/ adjacent

tan(θ)= (660/280)

tan(θ)= 2.357

tan-1=(2.357)

θ= 67°

Hence, angle of depression is 67°

A town doubles its size every 17 years. If the population is currently 15,000, what will the population be in 34 years?

Answers

Answer:

60,000

Step-by-step explanation:

Explanation: 34 is double of 17 so the town doubles twice, 15,000 * 2 * 2 is your Expression and leads you to 60,000.

I need help please quickly please

Answers

Answer:

Step-by-step explanation:

plug the equations into Desmos

as attached

y = -3x-6

x + 3y = 6

3y = -x +6

y = -1/3x +2

-3x-6 = -1/3x +2

-8/3x = 8

x = - 3

y=-3(-3)-6

y = 9-6

y = 3

HELP HELP HELP A triangle has two sides of length 14 and 18. What is the largest possible whole-number length for the third side?

Answers

The way you can do this is Pythagorean theorem. Since the hypotenuse has to be the highest part. So you would do 14^2 + 18^ = c^2 and then do that and you get 196 + 324 which is equal to 520 so then get the square root of that which is 22.8, but it says largest possible whole number length so you would put 22.

Answer:

22

Step-by-step explanation:

I added the numbers yw

Help? don't know what to pick, and please dont choose randomly

Answers

Answer:

yess!!!

step-by-step explained.

......

Yes because since its showing the box of the 90° angle, it shows the same size and shape of the triangle (but of course one of em is flipped) and thats pretty much, so yes is your answer! Hope it helped!

What's the distance between (5, 13) and (9, 1)

Answers

Answer: 16

Step-by-step 8+8

Plzz help will mark brainiest Don't do it for the points

Answers

Answer:

I think the answer is B

Step-by-step explanation:

I just wanna make sure i’m doing this right

Answers

I believe the answer is 175% but still check with a other person for verification

Answer:

175%

Step-by-step explanation:

The first one is a whole=1

the second one is cut in four but only 3 are shaded so 1/4=0.25    0.25*3=0.75

3/4/0.75 is shaded

so 1+0.75=1.75

1.75=175%

Using the equation y=kx what would be the proportionate equation if she worked 25 hours and made 150.00

Answers

Answer:

y = 6x

Step-by-step explanation:

Equation representing the relation between duration of work and earning is,

y = kx

Here, y = earnings

x = Working hours

k = Proportionality constant

By substituting the values in the given equation,

x = 25 hours

y = $150

150 = k(25)

k = 6

Therefore, equation modeling the situation will be,

y = 6x

Which exponential expression is equivalent to the one below? (6x3)^5
25 POINTS!!!!!!

Answers

Answer:

D) 6^5 · 3^5

Step-by-step explanation:

(6 · 3)^5 = 1889568

A) WRONG

(5 · (6 · 3)) = 90

B) WRONG

9^5 = 59049

C) WRONG

6 · 3^5 = 1458

D) CORRECT

6^5 · 3^5 = 1889568

help me plzz please please​

Answers

Answer:

132 square feet

Step-by-step explanation:

a+b/2*h

20+24/2*6=132

HELP ME PLEASE!!!!!!

Answers

The correct answer is letter C

This table shows a proportional relationship between the grams of peanuts and raisins in a bag of trail mix. Enter the number of grams of peanuts in a bag for every 1 gram of raisins

Answers

Answer:

3.5

Step-by-step explanation:

Hope this helps!

There are 3.5 gram of peanuts in a bag for every 1 gram of raisin  

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

From the table:

14 g of peanut = 4 gram of raisins

Hence:

1 gram of raisin = (14/4) = 3.5 gram of peanuts

There are 3.5 gram of peanuts in a bag for every 1 gram of raisin  

Find out more on equation at: https://brainly.com/question/2972832

What’s the length of a segment whose endpoints are (8,-6) and (-4,2)?

Answers

Answer:

Step-by-step explanation:

Imagine or draw a triangle with horizontal leg length 8 - (-4), or 12, and vertical leg length |-6 - 2|, or 8.  Use the Pythagorean Theorem to find the length of the hypotenuse:  

length of hypotenuse = +√(8² + 12²) = √208 = 4√13  (Answer A)

Sarah used 3.25 meters of fabric to make a costume. How many centimeters of fabric did she use?

Answers

Answer:

325 centimeters

Step-by-step explanation:

I need help ASAP, pls

Answers

V=135

volume of a rectangular prism is V=L•W•H/3
so the problem would look like V=9•9•5/3

Stacy made 3 of her car payments late and was fined 3 late fees. The total change to her savings from late fees was - $24. How much was each late fee?​

Answers

Answer:

$8

Step-by-step explanation:

I got my answer of $8 because I knew that the total amount of money she was charged for late fees was $24, and she was charged for 3 late fees. Then, I did $24 divided by 3 late fees and got $8 per late fee as my answer.

24 divided by 3 equals 8.

What are the solutions to the system of equations? y=2x^2−6x+3 y=2x+3

Answers

Answer:

Step-by-step explanation:

y=2x²-6x+3

y=2x+3

2x²-6x+3=2x+3

2x²-6x+3-2x-3=0

2x²-8x=0

2x(x-4)=0

x=0,4

y=0+3=3

and y=2(4)+3=11

so solutions are (0,3) and (4,11)

please help- how to find volume of a cilinder the diameter is 4cm and the height is 3cm

Answers

Answer:

V=π(d

2)2h=π·(4

2)2·3≈37.69911cm³

Step-by-step explanation:

what is 5^2 simplified

Answers

Answer:

25

Step-by-step explanation:

30,000 + 22 ML + 12 ML​

Answers

Answer:

30034 ML

Step-by-step explanation:

mark me brainllest

Answer:

30034 ML

Step-by-step explanation:

give person above me brainllest

I need help what is d/7 > 15???

Answers

Answer:

d>107

Step-by-step explanation:

I am sorry if you got this wrong..

From a distance of 1217 feet from a spotlight,the angle of elevation to a cloud base is 43 degrees. Find the height of the cloud base to the cloud base to the nearest foot

Answers

Answer:

1134.9 ft

Step-by-step explanation:

CHECK THE ATTACHMENT FOR THE FIQURE

From, trigonometry,

Tan(X) = opposite/ adjacent

Distance from the spotlight = 1217 ft, which is the adjacent sides

Let the height of the cloud= X

, Which is the opposite sides

Then substitute, we have

Tan(43°)= X/1217

(0.9325)= X/1217

X= 0.9325×1217

= 1134.9 ft

Hence, the height of the cloud base to the cloud base to the nearest foot is 1134.9 ft

Janine graphs these two lines and finds that they intersect.
y = -x + 1
2x + 3y = 6
Select the number from the drop down menu that correctly completes the
statement.
The y coordinate of the point of intersection is choose...

Answers

Answer:3

Step-by-step explanation:

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