Individual gas mileages (in miles per gallon) of Model Extra SS (Extra Super-Sporty) sedans are normally distributed with a population mean of 20 and a population standard deviation of 2. Based on these information, if you bought a Model Extra SS sedan, what is the probability that the gas mileage (in miles per gallon) of your single, individual sedan is between 19.5 and 20.5

Answers

Answer 1

Answer: 0.1974

Step-by-step explanation:

Let X be a random variable that denotes the gas mileage (in miles per gallon) of the individual sedan.

Given: Population mean: [tex]\mu=20[/tex]

Standard deviation: [tex]\sigma=2[/tex]

The probability that the gas mileage (in miles per gallon) of your single, individual sedan is between 19.5 and 20.5:

[tex]P(19.5<x<20.5)=P(\dfrac{19.5-20}{2}<\dfrac{x-\mu}{\sigma}<\dfrac{20.5-20}{2})\\\\=P(-0.25<z<0.25)=2P(0.25)-1 [P(-z<Z<z)=2P(Z<z)-1]\\\\=2(0.5987)-1=0.1974[/tex]

The required probability=0.1974


Related Questions

PLEASE HELP!
In 2-3 sentences describe why the only way an infinite geometric series has a sum is if |r| < 1.

Answers

the term r^n will equal to zero because and number < 1 that is raise to the power infinity the answer is zero that is why in a infinite geometric series, sum = a / 1 - r.
hope this helps

find the angle measure given extended triangles

help pls

Answers

Answer:

x=74

Step-by-step explanation:

Solve big triangle first 33+45= 78

78+28= 106

Will mark BRAINLIEST!

Find the numeral to put in the blank to make each equation true. Do not convert to base ten. (Hint: In base 12, T stands for the numer 1 greater than 9 and E stands for the number 2 greater than 9.)


a. 4413 five- __five= 2331 five
b. 10011 two+ __ two= 100000 two
c. TEE twelve- __ twelve= 8 twelve
d. 1000 five + __ five = 10000 five

Answers

Answer:

a. 4413₅ - __ ₅ = 2331₅

4413₅ - 2331₅ = 2032₅

b. 10011₂ + __ ₂ = 100000₂

100000₂ - 10011₂ = 10001₂

c. TEE₁₂ - __ ₁₂ = 8₁₂

TEE₁₂ - 8₁₂ = TT3₁₂

d. 1000₅ + __ ₅ = 10000₅

10000₅ - 1000₅ = 4000₅

Solve the following system of equations.
-3x+5y=-7
-7x-9y=25

Answers

Answer:

(x,y)=(-1.-2)

Step-by-step explanation:

Using the elimination method:

-27x+45y=-63

-35x-45y=125

---------------------

-62x=62-->x=-1

-3*(-1)+5*6=-7-->y=-2

giving brainliest !!!!

Answers

Answer:

1105.28

Step-by-step explanation:

d = 16

r = d/2 = 8

Formula:

SA = 2πr² + 2πrh

SA = 2(3.14)(8²) + 2(3.14)(8)(14)

SA = 2(3.14)(64) + 2(3.14)(8)(14)

SA = 401.92 + 703.36

SA = 1105.28

BUILDING PLANS In a scale drawing of a school's floor plan, 6 inches represents 100 feet If the
distance from one end of the main hallway to the other is 175 feet, find the corresponding length in the scale​

Answers

Answer:

10.5

Step-by-step explanation:

You just divide 175/100, and then multiply it by 6 to get 10.5

plz help me I'm timed!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!​

Answers

Answer:

Answer is C. 9

Step-by-step explanation:

It is basically the same thing as 12-3 and that's equal to 9. It's 9 my man

What is the midpoint of a line segment with endpoints at (2,3) and (4,5)?

Answers

Answer:

Use the formula.

((x1+x2)/2 , (y1+y2)/2)

(2+4)/2 , (3 + 5)/2

3 , 4

Answer:

(3, 4)

Step-by-step explanation:

(2,3) and (4,5)

midpt formula:

[tex](\frac{x1+x2}{2} ,\frac{y1+y2}{2} )\\\\(\frac{2+4}{2} ,\frac{3+5}{2} )\\\\(\frac{6}{2} ,\frac{8}{2} )\\\\(3,4)[/tex]

The distance around a triangle is 36 centimeters. If two sides are equal and the length of the third side is 14 centimeters, what is the length of each of the other two sides?

Answers

Length of unknown side = x

36 = 14 + 2x

Subtract 13 from both sides

22 = 2x

Divide by 2 on both sides to isolate for x

11 = x

11 cm

Plz help me I don’t understand this

Answers

Answer:

1/10

Step-by-step explanation:

just had to simplify

Answer:

[tex]\frac{1}{10}[/tex]

Step-by-step explanation:

Simplify the ratio by a common term (3)

Divide each number by this GCF : 3

3/3 =1

30/3 = 10

1/10

Can someone help me out with this?? It’s due soon...

Answers

1. 1.25

2. 0.85

3. 0.2

Hope this helped.


Consider the graph of f(x) = (1/2)x
The graph of function g is graph because the graph of function g is the result of a
applied to the graph of function f

Answers

The graph of function g is graph Z because the graph of function g is the result of a horizontal compression applied to the graph of function f

How to determine the function g(x)?

Function f(x) is given as:

[tex]f(x) = (\frac 12)^x[/tex]

Function g(x) is given as:

g(x) = f(kx)

The above represents a horizontal compression of function f(x) to form function g(x)

The graph that represents a horizontal compression is graph Z

Hence, the graph of function g is graph Z

Read more about horizontal compression at:

https://brainly.com/question/10675292

#SPJ1

The Ano Center in Chicago is a tall square tower. Its base covers an area of about 37,636 square feet. The building is about 1,136 feet tall. What is the volume of the Ano Center?

Answers

Answer:

42754496

Step-by-step explanation:

Volume =Base area * height

=37636 * 1136

=42754496cubic feet

which expression is 1/2 as large as 486-466

Answers

Answer: 20-10

Step-by-step explanation: 486-466 is 20. Half of 20 is 10. Any expression that equals ten is 1/2 as large as 486-466.

The expression is 1/2 as large as 486-466 is with the data 10.

What is fraction?

Fractions are represented as a numerical value, which defines a part of a whole. A fraction can be a portion or section of any quantity out of a whole, where the whole can be any number, a specific value, or a thing.

Let us understand this concept using an example. The following figure shows a pizza that is divided into 8 equal parts. Now, if we want to express one selected part of the pizza, we can express it as 1/8 which shows that out of 8 equal parts, we are referring to 1 part.

Given:

Class = 486 - 466

We have given a class whose upper limit = 486

and, lower limit = 466

the range or difference between class

=486 - 466

=20

Thus, the 1/2 of range is 10.

Hence, expression is 1/2 as large as 486-466 is with the data 10.

Learn more about fraction here:

https://brainly.com/question/10354322

#SPJ2

Someone please answer this correctly

Answers

Answer:

The answers would be 3 & 4 ^_^ .

Step-by-step explanation:

Hope it was helpful .

CAN SOMEONE PLEASE ANSWER THIS QUICKLY I DONT GOT TIME​

Answers

Answer:

6) 5(1/3)

7) 5(1/3)

8) 3(3/5) or 18/5

because answer were cut off

Answer:

7) 5 [tex]\frac{1}{3} \\[/tex]

8) 5 [tex]\frac{1}{3}[/tex]

9) 3 [tex]\frac{3}{5}[/tex]

hope it is right, just use your calculator

Raul recibió un bono de $750, el que era 5% de su salario anual . Su sueldo anual es de ?

Answers

Answer: 375

Step-by-step explanation:

A C (prima) = 14cm AC= 5cm


Cual es la razón de la homotecia?

Answers

6cm jejsjsoajebdhhsjajajananajja

A researcher wishes to be 95% confident that her estimate of the true proportion of individuals who travel overseas is within 4% of the true proportion. Find the sample necessary if, in a prior study, a sample of 200 people showed that 40 traveled overseas last year. If no estimate of the sample proportion is available, how large should the sample be

Answers

Answer: If in a prior study, a sample of 200 people showed that 40 traveled overseas last year, then n= 385

If no estimate of the sample proportion is available , then n= 601

Step-by-step explanation:

Let p be the prior population proportion of people who traveled overseas last year.

If p is known, then required sample size = [tex]n=p(1-p)(\dfrac{z^*}{E})^2[/tex]

z-value for 95% confidence = 1.96

E = 0.04  (given)

[tex]p=\dfrac{40}{200}=0.2[/tex]

[tex]n=0.2(1-0.2)(\dfrac{1.96}{0.04})^2=384.16\approx385[/tex]

Required sample size = 385

If p is unknown, then required sample size = [tex]n=0.25(\dfrac{z^*}{E})^2[/tex]

, where E = Margin of error , z* =critical z-value.

z-value for 95% confidence = 1.96

E = 0.04  (given)

So, [tex]n=0.25(\dfrac{1.96}{0.04})^2=600.25\approx601[/tex]

Required  sample size = 601.

quería saber el problema este q no me se la respuesta ​

Answers

Puedes poner una foto para poder ayudarte?

PLS HELP DUE VERY SOON
3. Consider the following box plot.

(a) Find the interquartile range.

(b) What percent of values is included in the interquartile range?

Answers

Answer:

a) Interquartile range= upper quartile- lowwr quartile

= Q3- Q1

= 4.75-2.25

= 2.50

b) ( 2.5 ÷ 6 ) × 100

= 41.67%

Answer:now you can give other guy brainliest.

Step-by-step explanation:

(m+2)^2=27
solve by square root property

when i did it i got: m=±√27-4
is that correct?

Answers

Answer:

Yes, that's correct

Step-by-step explanation:

Question 17 of 25
A density graph for all the possible speeds between 0 mph and 320 mph is in
the shape of a triangle. What is the height of the triangle?
A. 0.025
B. 0.003125
C. 0.00625
D. 0.0125
SUBMIT

Answers

ok so it’s pretty much be D. kinda hard to explain but i hope it helped

Please help. I need to prove ABCD is a parallelogram

Answers

Answer:

It's a parallelogram because it has two parallel sides "a,b"+"d,c" or "a,d"+"b,c". It is connected by "a,d".

Step-by-step explanation:

Emilio represents the perimeter of the triangle with the equation
(5w - 13) + (2w + 6) + 2(5w + 15) = P, where P is the perimeter of the triangle.
Which equation is correctly solved for w?

Answers

Answer:

A

Step-by-step explanation:

1) multiply 2 for 5w and 15

5w -13 + 2w + 6 + 10w + 30 = P

2) sum the therms with w and the term without it

17w + 23= P

3) add -23 at the two terms

17w + 23 - 23= P - 23

17w = P - 23

4) divide the two terms by 17

w = (P-23)/17

if f(x) = 2x+6 and g(x) = x(3) , what is (g0f)(0)

Answers

Answer:

(g0f)= (2x0+6 x 0x3)= 8x3= 24

Step-by-step explanation:

I'm not sure

:) sorry

What is the area? Write the answer

Answers

Answer:

the answer to the question is 179/25

Somebody please help me!!!

Answers

Answer:

(-1,6) is where the point would be.

Just a reflection across the y axis.

Answer:

(-6, 1)

Step-by-step explanation:

I rotate 270 degrees means to turn 90 degrees clockwise 3 times, If You rotate once it is in the +x, -y rotate again -x, -y, and the last time is -x +y. Please give brainliest if this is helpful. Sorry if this is confusing :)

The other person did a 180 degrees rotation instead of 270

if you answer this pls explain (no links)

Answers

Answer:

false

Step-by-step explanation:

15-8=7

8-15=-7

The growth in per share FCFE of FOX, Inc. is expected to be 10%/year for the next three years, followed by a growth rate of 5%/year for two years; after this five year period, the growth in per share FCFE is expected to be 3%/year, indefinitely. The required rate of return on FOX, Inc. is 12%. Last year's per share FCFE was $1.8. What should the stock sell for today?

Answers

Answer: $25.46

Step-by-step explanation:

Year 1 FCFE = 1.8 * (1 + 10%) = $1.98

Year 2 FCFE = 1.98 * 1.1 = $2.18

Year 3 FCFE = 2.178 * 1.1 = $2.40

Year 4 FCFE = 2.3958 * 1.05 = $2.52

Year 5 FCFE= 2.51559 * 1.05 = ‭2.64

Terminal Value = (2.64 * 1.03) / (12% - 3%)

= $30.21

Now discount all these cashflows to find the value:

= (1.98 / 1.12) + (2.18 / 1.12²) + (2.40 / 1.12³) + (2.52 / 1.12⁴) + (2.64 / 1.12⁵) + (30.21 / 1.12⁵)

= $25.46

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