A company produces and sells homemade candles and accessories. Their customers commonly order a large candle and a matching candle stand. The weights of these candles have a mean of 500g and a standard deviation of 15g. The weights of the candle stands have a mean of 200g and a standard deviation of 8g. Both distributions are approximately normal.
Let T= the total weight of a randomly selected candle and a randomly selected stand, and assume that the two weights are independent.
If the total weight T of the two items is under 683g, the company gets a discount on shipping.
Find the probability that the total weight is under 683g.
You may round your answer to two decimal places.
P(T<683)≈

Answers

Answer 1

Answer:

P(T<683) = 0.1587 = 15.87% ≈ 16%.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Sum of normal variables:

When two normal variables are added, the mean is the sum of the means, while the standard deviation is the square root of the sum of the variances.

The weights of these candles have a mean of 500g and a standard deviation of 15g. The weights of the candle stands have a mean of 200g and a standard deviation of 8g.

The package consists of one candle of each type. So

[tex]\mu = 500 + 200 = 700[/tex]

[tex]\sigma = \sqrt{15^2 + 8^2} = 17[/tex]

Find the probability that the total weight is under 683g.

This is the pvalue of Z when X = 683.

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{683 - 700}{17}[/tex]

[tex]Z = -1[/tex]

[tex]Z = -1[/tex] has a pvalue of 0.1587

So

P(T<683) = 0.1587 = 15.87% ≈ 16%.

Answer 2

Answer:

0.1587 Step-by-step explanation:kahn


Related Questions

Help please ?
Write a quadratic equation in standard form with the given root(s) -5,1/2

Answers

Answer:

2x^2+9x-5

Step-by-step explanation:

(X+5)(x-1/2)

x^2-1/2x+5x-5/2

x^2+9/2x-5/2

multiply through by 2

2x^2+9x-5

A bag contains 5 red marbles, 8
green marbles, 6 orange marbles, and
11 yellow marbles. What is the
probability of randomly choosing
an orange marbles

Answers

Answer:

1/5

Step-by-step explanation:

First you need to find the total amount of marbles

5+8+6+11= 30

There are 6 orange marbles

So the probability is 6/30 which reduces to 1/5

please help!! True or false??

Answers

true

I’m pretty sure it’s true but if not then I’m extremely sorry

Please answer number 1 and 2 with ABC or D

Answers

Answer:

1. (a) a+b=86

2. (c) 5.99a+9.99b≤600

Step-by-step explanation:

1.

a = amount of 16gb memory sticks

b = amount of 21gb memory sticks

Gary is buying a memory sticks for each of the 86 teachers. Therefore the total sum of both 16gb and 32gb memory sticks should equal 86:

a+b=86

2.

a = amount of 16gb memory sticks

b = amount of 21gb memory sticks

Each 16gb memory stick cost $5.99, and each 32gb one costs $9.99. Therefore...

5.99a = total cost of 16gb memory sticks

9.99b = total cost of 32gb memory sticks

Gary has to spent an amount less than or equal to $600. Therefore, the total sum of the costs of both 16gb and 32gb memory sticks should be less than or equal to 600:

5.99a+9.99b≤600

please help me! it’s urgent

Answers

Answer: 85

Step-by-step explanation:

360degree for quad

thus

95+85+95 = 275

360-275 = 85

Answer:

S=85°

Step-by-step explanation:

95+85+95= 275

(a square is equaled to 360 degrees so you do this)

360°-275°= 85°

(Take away what the shape/angle is equal to from your findings in your first step) .

Can you figure out the answer?​

Answers

Answer:

1680

Step-by-step explanation:

480x3=1440

480/2=240

1440+240=1680

Helppppppppppppppppppppppppppp

Answers

Answer:

126 [tex]m^{2}[/tex]

Step-by-step explanation:

The queen of hearts, queen of diamonds, queen of spades, and queen of clubs are taken out of a deck of cards. They are to be put in 3 places on a table. In how many different ways can they be placed in the 3 spots?

Answers

Answer:

Hello There!!

Step-by-step explanation:

The answer is 52.

hope this helps,have a great day!!

~Pinky~

It costs y dollars to buy x cans of tomatoes. What is the constant of proportionality?

Answers

Answer

1 and 0.89

Step-by-step explanation:

idrk tho

Which of the following are accurate descriptions of the distribution below? (LOOK AT IMAGE PLEASE I MARK BRAINLIEST)
Choose all answers that apply:
A: The Distribution has an Outlier
B: The Distribution has a peak at 22 degrees celsius
C: None of the Above

Answers

Answer:

B: The Distribution has a peak at 22 degrees celsius

Step-by-step explanation:

We are given a photo of a point plot, including with several descriptions and are asked to find which accurately describes the picture.

Let's take a look at our options,

A: The Distribution has an Outlier

This would be incorrect, an outlier is a point on any graph that doesn't really fit in well with all the other points, say there is a straight line with a bunch of dots surrounding it, then there is one dot that is far away from the rest, that is an outlier. Looking at the point plot, we see that all the dots fit in well together and no dots are really separated, therefore making this incorrect.

B: The Distribution has a peak at 22 degrees celsius

This would be correct, when referring to peak, the peak is supposed to represent the highest point or value a certain number/amount has. If we look at the point plot, we can see that there are the most dots at 22 than any other temperature. Therefore making it the peak, and making B correct.

C: None of the Above

This is obviously incorrect, B is a correct answer.

in a raffle 200 tickets are sold 78 children and 93 women buy one ticket each men buy the rest of the tickets. work out the probability that a man buys the winning ticket

Answers

Answer:

The probability that a man buys the winning ticket is 107/200

Step-by-step explanation:

78 men buy tickets, 93 women buy tickets. If the rest of the tickets are given to men, there are 200-93-78, or 29 tickets left, which go to men. 78 + 29 = 107 men who have tickets.

The probability that a man buys the winning ticket is

number of men with tickets / number of tickets, or

107 / 200.

Running the last lap of a 4 x 100-meter relay, Bob takes the baton for his team and pursues his opponent already 20 meters ahead of him. If Bob runs at an average speed of 8 meters per second and his opponent only runs 6 meters per second, will Bob overtake him and win the race? If he does not catch him, how close does he get before the opponent crosses the finish line? If he does catch him, how many seconds and how many meters will it take?

Answers

Answer:

v1 t = distance Bob travels  

v2 t + 20 = distance opponent travels

v1 t  = v2 t + 20

t = 20 / (v1 - v2) = 20 / (8 - 6) = 10 sec

In 10 sec Bob runs 80 m

In 10 sec opponent runs 20 + 60 m = 80 m

10) What is the absolute value of 27? *

Answers

Answer:

27

Step-by-step explanation:

Answer:

27

Step-by-step explanation:

HELP ASAP!!! I’m confused and need help guys!!! Thanks!!

Answers

Answer:

Triangle 2

Step-by-step explanation:

5, 12, 13

Use the Pythagorean Theorem

a^2 + b^2 = c^2

a = 5

b = 12

c = 13

25 + 144 = 169

a and b are side lengths

c is the hypotenuse

The theorem states that the square of the side lengths of a right triangle added together equals the square of the hypotenuse

Answer:

B is the right triangle because the sum of the square of each of the two shortest sides will equal the square of the longest side.

Step-by-step explanation:

Pythagorean Theorem says if a triangle is a right triangle with side lengths a, b, and c, then a^2 + b^2 = c^2 where c is the length of the longest side.

So, A. 16^2= 7^2 + 12^2  256 does not = 193 NOT a right triangle

      B. 13^2= 5^2 + 12^2  169 = 169 Yes this is a right triangle

      C. 9^2= 4^2 + 5^2  81 does not = 41 NOT a right triangle

      D. 19^2= 8^2 + 15^2  361 does not = 289 NOT a right triangle

     

A quiz consists of five multiple choice questions. Each question has four choices. A student who forgot to study guesses randomly on every question What is the probability that the student answers exactly three questions correctly?​

Answers

Answer:

1/64

Step-by-step explanation:

probability of getting one question correct is 1/4

P(3 questions correct):  1/4 · 1/4 · 1/4

Please help! I will give brain list also if you mind(you don’t have to) but may you explain?
Also I report people who add links :)

Answers

Answer:

2. 8/10 is bigger

3. 7/8 is bigger

4. 1/2 is bigger

5. 8.12 is bigger

6. 4/6 is bigger

7. 7/12 is bigger

Step-by-step explanation:

Which describes the effect of the transformations on the graph of f(x) = x^2 when changed to f(x) = 3(x+2)^2 - 4

Answers

It’s A, you know it can’t be B or D since you translate down vertically and since the number in front of the x^2 term is greater than 1 it is a vertical stretch.

There must be fewer than 5 fish in the small aquarium. There are already 3 fish in the aquarium. What inequality represents the number of additional fish, f, that can be put into the aquarium? Drag and drop the appropriate symbols to correctly complete the inequality. 131 15 + > < < IV​

Answers

2 is the answer to the question

If there are already 3 fish in the aquarium. Then the number of fish in the aquarium should be less than 2.

What is inequality?

Inequality is simply a type of equation that does not have an equal sign in it. Inequality is defined as a statement about the relative size as well as is used to compare two statements.

There must be fewer than 5 fish in the small aquarium. There are already 3 fish in the aquarium. Then the inequality equation will be

Let the number of fish in the aquarium be x. Then the inequality equation will be

x < 5

But there are already 3 fish in the aquarium, then we have

x - 3 < 2

Then the number of fish in the aquarium should be less than 2.

More about the inequality link is given below.

https://brainly.com/question/19491153

Which side lengths form a right triangle?

Answers

Answer:

Answer:[tex] \huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{➔}\ [/tex] Pythagoras law:h²=p²+b²

needed to apply

4²+8²=12²

80≠144 not a right angled triangle

again

2²+√5²=3²

9=9/

side are a right angled triangle

again

2²+2²=(√8)²

4+4=8

8=8

side are a right angled triangle

Answer:

[tex]2,\sqrt{5},3[/tex] and [tex]2,2,\sqrt{8}[/tex]

Step-by-step explanation:

What is the inverse of x/4 ?
ill give brainlist thingy lol

Answers

Step-by-step explanation:

If you are talking about an inverse function f-1(x) of the function f(x), you must remember that, by definition,

f(f-1(x)) = x

So given f(x) = x/4 if I apply an arbitrary K which is equal to f-1(x), then

f(K) = x

K/4 = x

K = 4x

But I want to recover f-1(x), so replace it back.

f-1(x) = 4x

Done

Round 823 to the nearest ten

Answers

Answer:

820

Step-by-step explanation:

Find the number in the ten place 2 and look one place to the right for the rounding digit 3. Round up if this number is greater than or equal to

5 and round down if it is less than 5.

Question is attached

Answers

Answer:

It should be C

Step-by-step explanation:

I hope this helps!

Find the distance between the two points. (−6, −7), (0, 0)

Answers

Answer:

d = √85

Step-by-step explanation:

Here use the distance formula.

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\\text{Substitute the values.}\\d = \sqrt{(0-(-6))^2+(0-(-7))^2}\\\text{Subtract by negative, which is adding.}\\d=\sqrt{(6)^2+(7)^2}\\\text{Apply the powers of 2.}\\d=\sqrt{36+49}\\\text{Add.}\\d=\sqrt{85}[/tex]

plz plz plz help ill give brainly

Answers

Answer:

Width is 3

Step-by-step explanation:

_____________

/ / |

/ ______________/ |

2.5| | |

f | | |

e | | |

e | | |

t | | |

| | /

| | /

|______________|/ 3 feet

4 feet

Which set of ordered pairs shows a function?
A. {(2,3),(2,6),(2,9),(2, 12), (2, 15)}
B. {(2,6).(-3,6).(-8,11), (6,2) (9,-7)}
C. {(3,-5),(4, -4),(5,-3),(4,-2),(3,-1)}
O D. {(3,8).(-3,2),(-6,0),(-3,-2),(3,-8)}
Help me please

Answers

A. Is not a function, the x value 2 has many outputs
B. It is a function, all the x values have different outputs
C. Not a function, the x values 3 and 4 have different outputs
D. Not a function, the x values 3 and -3 have different outputs


A relation is a function if each input value (or x) has only one output. However, the outputs could have many inputs.

Please answer ASAP! If 0 is an angle in quadrant II, what is the value of sin(0)

Answers

Answer:

Option A

Step-by-step explanation:

It's given that cosθ = [tex]-\frac{2\sqrt{5} }{5}[/tex]

Since, cosθ = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex] = [tex]-\frac{2\sqrt{5} }{5}[/tex]

                                        = [tex]\frac{2}{\sqrt{5}}[/tex]

By applying Pythagoras theorem in the right triangle,

(Hypotenuse)² = (Opposite side)² + (Adjacent side)²

(√5)² = (Opposite side)² + (2)²

5 = (Opposite side)² + 4  

Opposite side = √(5 - 4)

                       = 1

Since, sinθ = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

                  = [tex]\frac{1}{\sqrt{5}}[/tex]

Since, sine is positive in IInd quadrant,

sinθ = [tex]\frac{1}{\sqrt{5}}[/tex]

Therefore, option A will be the answer.

Need help understanding this problem! If someone would explain how to do it that would be great!

In Triangle FGH, FH=6 ft, FG=11 ft, and m *Hint: Law of Cosines

Answers

Answer:

m∠G = 31.83°

Step-by-step explanation:

From the triangle FGH,

FH = 6 ft

FG = 11 ft

And measure of the included angle ∠F = 73°

We have to find the measure of ∠G.

By applying law of cosine in the triangle to get the measure of third side GH first,

GH² = FH² + FG² - 2(FH)(FG)cos(∠F)

GH² = 6² + 11² - 2(6)(11)cos(73°)

GH² = 36 + 121 - 38.593

GH = √118.407

GH = 10.88 ft

Now apply sine rule in the given triangle to get the measure of ∠G.

[tex]\frac{\text{sinG}}{FH}=\frac{\text{sinF}}{GH}[/tex]

[tex]\frac{\text{sinG}}{6}= \frac{\text{sin(73)}}{10.88}[/tex]

sin(G) = 0.527374

G = [tex]\text{sin}^{-1}(0.527374)[/tex]

m∠G = 31.83°

Which expression uses numbers and symbols to represent the statement subtract 6 from 11 ,double the difference, and then add three- fourths?

Answers

Answer:

sorry if I knew I would have told you but follow me

Can someone please help me I will mark u brilliant

Answers

Answer:

The answer is 11

Step-by-step explanation:

The answer is eleven

6 = k over 9
k equals?

Answers

Answer:

k  = 54

Step-by-step explanation:

6 = [tex]\frac{k}{9}[/tex]

multiply both sides by 9 to isolate k

=> k  = 54

Answer:

k = 54

Step-by-step explanation:

[tex]6 = \frac{k}{9}[/tex]

Multiply both sides by 9:

9(6) = k

k = 54

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