At one point the average price of regular unleaded gasoline was $3.57 per gallon. Assume that the standard deviation price per gallon is $0.05 per gallon and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 4 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 2.5 standard deviations of the mean? What are the gasoline prices that are within 2.5 standard deviations of the mean? (c) What is the minimum percentage of gasoline stations that had prices between $3.47 and $3.67?

Answers

Answer 1
I don’t know the answer for that I will try to work out this problem

Related Questions

8. At a wholesale food distribution center, the price of sugar has increased 6.3% annually since 1980.
Suppose sugar cost $0.43 per pound in 1980 and this growth continues. What will a pound of sugar
cost in 2017? Use y = a(1 + r) and round to the nearest cent.
a. $4.12 b. $1.21
c. $0.42 d. $3.30

Answers

Answer: A. $4.12

Step-by-step explanation:

Y=a(1+r/n)^nt is the equation we use to solve this.

a= $0.43

t=37 - take 1980 and subtract it from 2017

r= .063 - the 6.3% goes into a decimal

n = 1

Y= ?

Y= 0.43( 1+ .063/1) ^1*37

Y= 0.43 (1.063) ^37

Y= 4.12

Which equations can be used to determine the area of the irregular figure?​

Answers

Answer:

the first option put I'm not 100% sure so if I get it wrong I apologize

A diver was 40 feet below the surface of the water. A fisherman was casting off a dock right above the diver that was 12 feet above the surface of the water. How far apart are the diver and the fisherman?

A.
28 feet

B.
-52 feet

C.
-28 feet

D.
52 feet

Answers

Answer:

The answer is D.

Step-by-step explanation:

It is D because they cannot be negative feet away and if the fisherman is 12ft above water and the diver is 40ft below than 40 + 12 = 52. Hope this helps.

1) Find the product: 6 x 1/3= * O 61/3 O 6/18 6/3 01/18​

Answers

Answer:

2

Step-by-step explanation:

Answer:

I think its the second answer

Original price of a book 18.50 discount 45%

Answers

Answer:

18.5-45%=10.175 Hope this helped! :)

joe mama is obama

Step-by-step explanation:

What is the degree?
6−n
2
+5n
3

Answers

Answer:

The degree is 3

Step-by-step explanation:

Given

[tex]6 - n^2 + 5n^3[/tex]

Required

The degree

The highest power of the variable is regarded as the degree of the polynomial

In the given polynomial, the variable is n.

And the powers of n are:

[tex]n = \{0,2,3\}[/tex]

The highest power is 3; Hence, the degree is 3

Graph x=2.5 will do anything

Answers

Okay, so you're going to go along the line that goes side to side, and then find positive 2. It'll be on the right side. From there, go half way in and insert a line going up and down.

Bam! You've got yourself x= 2.5 graphed!

Answer:

O ma god. dat many tabs open!!!! xD

Step-by-step explanation:

It's on da graph

7. If four times a number plus 3 is 11, what is the number?
A. 4
B. 2
C. 5
D. 16

Answers

Answer:

B

Step-by-step explanation:

Cause....

11-3=8

8/4=2

Answer:

B: 2

Step-by-step explanation:

To get this answer, you would do:

11-3 = 8

then divide it by four, resulting in this as your answer :

8/4 = 2

Best regards!

5. (08.02 MC) Which of the following graphs shows a pair of lines that represents the equations with the solution (3, -6)? (1 point)​

Answers

Answer:

Hello, it appears you did not attach an image that would provide the necessary information for me to answer your question. I cannot see the graphs, so I'm afraid unless you present a photograph, I'm cannot help you. If you show me the graphs, I'd be more than happy to help you!

Step-by-step explanation:

Help me pleaaaaaseeee​

Answers

a = 28.356 ≈ 28.4

Here, we use law of sines, which says that sina / A = sinb / B. We know that b = 130 degrees, B = 10cm, and A = 6.2cm. Using algebra, we solve sina / 6.2 = sin130 / 10 to get a final answer.

What is the ratio of 4 and 120

Answers

Answer:

1 : 30 or

[tex] \frac{1}{30} [/tex]

................................................

Answer:

1: 30

Step-by-step explanation:

Help I need an explanation

Answers

Answer:

Step-by-step explanation:

X =75

Answer:

180° - 105 = 75°i.e angle EFB (sum of angle in st.line)

Step-by-step explanation:

X°= angle EFB ( being corresponding angle)

Hence the value of x is 75

Parker just started a running plan where he runs 7 miles the first week and then
increases the number of miles he runs by 10% each week. If he keeps up this plan for
15 weeks, how many total miles would Parker have run, to the nearest whole
number?

Answers

Answer:

Parker would have run 29 miles in the 15th week.

Step-by-step explanation:

Since Parker just started a running plan where he runs 7 miles the first week and then increases the number of miles he runs by 10% each week, to determine, if he keeps up this plan for 15 weeks, how many total miles would Parker have run, to the nearest whole number, the following calculation should be performed:

7 x 1.1 ^ 15 = X

7 x 4.1772 = X

29.24 = X

Therefore, Parker would have run 29 miles in the 15th week.

 The supplement of an angle is 12 less than 3 times the angle. Find the angle and its supplement​

Answers

Answer:

[tex]\text{Angle: }48^{\circ},\\\text{Angle's supplement: }132^{\circ}[/tex]

Step-by-step explanation:

Let the angle be [tex]\theta[/tex]. Supplementary angles are angles that add up to [tex]180^{\circ}[/tex]. Therefore, we can set up the following equation:

For some angle [tex]\theta[/tex], the supplement of [tex]\theta[/tex] will be [tex]180-\theta[/tex].

[tex]3\theta=(180-\theta)+12,\\3\theta -12=180-\theta,\\4\theta=192,\\\theta=\frac{192}{4}=\boxed{48^{\circ}}[/tex]

Now solving for the supplement:

[tex]\text{Supplement}=180-\theta=180-48=\boxed{132^{\circ}}[/tex]

The 20% tip on a $73 meal

Answers

What's a 20% Tip on a $73 Bill?
Bill: $73.00
Tip: $14.60
Total: $87.60

Which expression does the number line represent?
O 3+ 3/4. O 3/4 + 9/4 O 3 + 9/4 O 9/4 + 3/4

Answers

I’m pretty sure 3+9/4 is correct

Which numerical expression represents the following calculation?
Add the quotient of 35 and 5 to the product of 2 and 6.

Answers

Answer:

19

Step-by-step explanation:

Given the expression:

Add the quotient of 35 and 5 to the product of 2 and 6.

Quotient of 35 and 5 :

35 / 5 = 7

Product of 2 and 6 :

(2 * 6). = 12

Adding the result of the both calculations :

7 + 12 = 19

Writing the expression together :

35/5 + (2 * 6)

7 + 12

Simplify c^3d^4/c^2d

Answers

Answer:

I think the answer is :-

[tex]c {d}^{3} [/tex]

The simplification of c^3d^4/c^2d is cd^3.

What is simplification of an expression?

Simplification of an expression is the process of writing an expression in the most efficient and compact form without affecting the value of the original expression.

For the given situation,

The expression is c^3d^4/c^2d.

The simplification is as

⇒ [tex]\frac{c^{3}d^{4} }{c^{2}d }[/tex]

⇒ [tex]\frac{(c^{2})( c)(d^{3} )(d)}{c^{2} d}[/tex]

⇒ [tex]cd^{3}[/tex]

Hence we can conclude that the simplification of c^3d^4/c^2d is cd^3.

Learn more about simplification of an expression here

https://brainly.com/question/13730519

#SPJ2

Select from the following pairs of events all the pairs that are independent.

A. Draw a 2 of clubs from a standard deck of 52 cards, keep it, then draw a 2 of diamonds.
B. Draw a 3 of spades from a standard deck of 52 cards, replace it, then draw a 5 of hearts.
C. Roll a number cube. Then roll again if the first roll is a 6.
D. Roll a 2 on a number cube and spin a 3 on a spinner.
E. Events A and B, where P(A) = 0.4, P(B) = 0.2, and P(A and B) = 0.8.
F. Events A and B, where P(A) = 0.1, P(B) = 0.5, and P(A and B) = 0.05.

Answers

Answer:

A.) Independent

B.) Independent

C.) Dependent

D.) Independent

E.) Dependent

F.) Independent

Step-by-step explanation:

To find - Select from the following pairs of events all the pairs that are independent.

A. Draw a 2 of clubs from a standard deck of 52 cards, keep it, then draw a 2 of diamonds.

B. Draw a 3 of spades from a standard deck of 52 cards, replace it, then draw a 5 of hearts.

C. Roll a number cube. Then roll again if the first roll is a 6.

D. Roll a 2 on a number cube and spin a 3 on a spinner.

E. Events A and B, where P(A) = 0.4, P(B) = 0.2, and P(A and B) = 0.8.

F. Events A and B, where P(A) = 0.1, P(B) = 0.5, and P(A and B) = 0.05.

Proof -

We know that,

Independent events are the events that does not depend on the previous events.

Also,

If A and B are two independent events, then

P(A and B) = P(A) * P(B)

Now,

A.)

Draw a 2 of clubs from a standard deck of 52 cards, keep it, then draw a 2 of diamonds.

Here,

Event 1 - Draw a 2 of clubs from a standard deck of 52 cards

Event 2 - keep it, then draw a 2 of diamonds.

These Events are independent

Because

Event 1 is about picking a card that is club

Event 2 is about picking a card that is diamond

And Diamond and spades are 2 different types of card in a pack of standard deck.

So, they are not related to each other.

So,

Both the Events are Independent.

B.)

Draw a 3 of spades from a standard deck of 52 cards, replace it, then draw a 5 of hearts.

Event 1 is about picking a card that is spade

Event 2 is about replacing the card to heart.

These Events are independent

Because

And spade and heart are 2 different types of card in a pack of standard deck.

So, they are not related to each other.

So,

Both the Events are Independent.

C.)

Roll a number cube. Then roll again if the first roll is a 6.

Event 1 is Roll a number cube.

Event 2 is Roll again if the first roll is 6.

These Events are Dependent

Because

Event 2 is dependent on Event 1.

If Event 1 given no 6 then Event 2 would not happen

If Event 1 given 6 then Event 2 would happen.

So, They are related to each other

So,

Both the Events are Dependent.

D.)

Roll a 2 on a number cube and spin a 3 on a spinner.

Event 1 is Roll a 2 on a number cube

Event 2 is spin a 3 on a spinner

These Events are independent

Because

Cube and spinner are two different objects.

So, they are not related to each other.

So,

Both the Events are Independent.

E.)

Events A and B, where P(A) = 0.4, P(B) = 0.2, and P(A and B) = 0.8.

These Events are Dependent

Because

P(A and B) = P(A)*P(B)

⇒0.8 = 0.4*0.2

⇒0.8 = 0.08

But they are not equal

So, they are not independent Events.

F.)

Events A and B, where P(A) = 0.1, P(B) = 0.5, and P(A and B) = 0.05.

These Events are independent

Because

P(A and B) = P(A)*P(B)

⇒0.05 = 0.1*0.5

⇒0.05 = 0.05

They are not equal

So, they are independent Events.

help me pls! PLS PLS PLS I NEED IT

20 points
options are x, x^9, x^4, and x^6

Answers

Answer:

x^4

Step-by-step explanation:

The expression can be simplified to (x^2)^2. Using an exponent rule, you multiply the two exponents together to get 4. The answer is x^4

I WILL GIFT YOU 30 Brainly (On Jesus)

Answers

Answer:

since highest degree is 2 the degree of a polynomial is also 2.

since the highest exponent is 2 the leading coefficient is 1.

Step-by-step explanation:

Write the equation of the line with the given slope and y-intercept.
slope - 5
y-intercept - 8
A)
y = 5x+8
B
x - 5y + 8
y- 8x-5
D
Xo Bys

Answers

Answer:

y = 5x+8

Step-by-step explanation:

The slope intercept form of a line is

y = mx+b where m is the slope and b is the y intercept

We know the slope is 5 and the y intercept is 8

y = 5x+8

24/10 into hundredths​

Answers

Answer:

240/100

Step-by-step explanation:

just multiply 24 by 10 to get hundredths

A student performed the following steps to find the solution to the equation
x2 + 4x-12-0. Where did the student go wrong?

Answers

Answer:

Step 2

Step-by-step explanation:

Step 2 because in step 1, they correctly wrote the factors of the polynomial as (x+6) and (x-2). But then in step 2, (x+6) suddenly became (x-6) and (x-2) became (x+2), which is incorrect.

The answers in step 3 should have been -6 and  2.

An experiment to improve eyesight with a new drug involves 100 subjects. 50 subjects are randomly chosen to receive the treatment and the other 50 subjects receive a placebo. There was very little difference between the success rate of the treatment group and the placebo group. The success of the placebo group may be due to Group of answer choices

Answers

Answer: Hello your question lacks the required options but I will provide a more general answer

answer :  Ineffectiveness/failure of the experimental Treatment given to the 50 subjects in the Treatment group

Step-by-step explanation:

The Placebo treatment is a treatment given for the purpose of psychological benefit. it does not have a therapeutic effect on the individual.

Given that there is very little difference between the success rate of the group whom actually receive the treatment ( for the purpose of therapeutic effect ) and the group that received placebo treatment we can conclude that the success of the Placebo group is due to the ineffectiveness of the Treatment given to the 50 subjects in the Treatment group

2612 ÷13 = ? A. 202 r11 B. 200 r12 O O D. 199111 C. 200 r13​

Answers

It’s B 200 remainder 12.
If you multiply 200 with 13 you get 2600.
To find the remainder subtract 2612 with 2600 which leaves 12.

Answer two questions about Equations A and B:

A. 5x = 3x

B. 5 = 3

1) How can we get Equation B from Equation A?

A. Add/subtract the same quantity to/from both sides

B. Add/subtract a quantity to/from only one side

C. Multiply/divide both sides by the same non-zero constant

D. Multiply/divide both sides by the same variable expression

2( Based on the previous answer, are the equations equivalent? In other words, do they have the same solution?

A. Yes

B. No

Answers

Yes I’d the answer and it’s D

Can someone tell e where to plot this? (PLEASE NO FILE ANSWER). !!!

Answers

Step-by-step explanation:

x<5

This means that we want to graph all the numbers less than 5, but not 5 itself. So the circle is selected onto the 5 mark, we make it open, and we make the graph go to the left of the circle.

Answer:

1.Make the circle open

2.put the dot on 5

3. change direction

Step-by-step explanation:

A solid dot on a number line graph indicates that the given number should be included as a possible solution, whereas an open dot indicates that the given number cannot be a solution. For example, if you graph x > 7, you place an open dot at 7.

Have a nice day! :-)

Solve for the x variable

Answers

Answer:

5x-5.2=7.3

5x=7.3+5.2

5x=12.5

x=12.5÷5

x=2.5

Answer: x = 2.5

Step-by-step explanation:

Try to get x by itself

5x - 5.2 = 7.3

5x = 7.3 + 5.2

5x = 12.5

x = 12.5 / 5

x = 2.5

The top three oil producers in the United States in a certain year were the Gulf of Mexico, Texas, and Alaska. The three regions were responsible for 64% of the United States oil production. The Gulf of Mexico and Texas combined for 47% of oil production. Texas produced 3% more than Alaska. What percent of United States oil production came from these regions?

Answers

Answer:

27% of United States oil production came from Gulf of Mexico.

20% of United States oil production came from Texas.

17% of United States oil production came from Alaska.

Step-by-step explanation:

This question is solved by a system of equations.

I am going to say that:

Gulf of Mexico produced x%.

Texas produced y%.

Alaska produced z%.

The three regions were responsible for 64% of the United States oil production.

This means that:

[tex]x + y + z = 64[/tex]

The Gulf of Mexico and Texas combined for 47% of oil production.

This means that [tex]x + y = 47[/tex].

We use this to find z.

[tex]47 + z = 64[/tex]

[tex]z = 64 - 47 = 17[/tex]

17% of United States oil production came from Alaska.

Texas produced 3% more than Alaska.

Then:

[tex]y = z + 3 = 17 + 3 = 20[/tex]

20% of United States oil production came from Texas.

Gulf of Mexico

[tex]x + y = 47[/tex]

[tex]x = 47 - y = 47 - 20 = 27[/tex]

27% of United States oil production came from Gulf of Mexico.

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