A plumbing contractor obtains 60% of her boiler circulators from Company 1 whose defect rate is 0.005 and the rest from Company 2 whose defect rate is 0.01. If a circulator is defective, what is the probability that it came from the first company? Fill in the contingency table below in order to find the answer. Write your answer as a decimal using 4 significant digits, like for example 0.0247. Defective Non-Defective Total 600 Company 1 Company 2 Total 400 1000

Answers

Answer 1

The probability that it came from the first company is  1/2.88⁹.

What is probability?

Probability is the chance of occurrence of a certain event out of the total no. of events that can occur in a given context.

Conditional probability is a term used in probability theory to describe the likelihood that one event will follow another given the occurrence of another event.

Given, A plumbing contractor obtains 60% of her boiler circulators from Company 1 whose defect rate is 0.005 so 40% of her boiler circulators from Company 2 whose defect rate is 0.01.

Now, The probability of the defect rate of company 1 is P(D1) = 0.005/60.

And, The probability of the defect rate of company 1 is P(D1) = 0.01/40.

Therefore, The probability of that it came from the first company is,

= (0.005/60)×( 0.01/40)/60.

= (1/12000)×(1/4000)/50.

= 1/2.88⁹

learn more about probability here :

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Related Questions

hello! is y = 3x - 3 proportional or non-proportional?? please help!

Answers

A proportional graph is a straight line that goes through the origin while a non-proportional graph is a straight line that doesn't go through the origin.

y = mx + b

the b represents the y-intercept, so -3 is the y-intercept in the equation y = 3x -3

therefore, the line doesn't go through the origin and is a non-proportional equation

I need help its not 4236

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Answer: 4236

Step-by-step explanation: I used a calculator. If it's wrong, tell your teacher/instructor.


If correct I’ll give brainlist

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Answer:

y=x4

Step-by-step explanation:

Answer:

y-intercept = 0

Step-by-step explanation:

Find the volume of the sphere r=3

Answers

Answer:

113.1 Units

Step-by-step explanation:

4 /3πr^3

Answer:

If u consider Pi as 3.14 the answer would be 113.04 .

Step-by-step explanation:

Hope it was helpful , Good luck .

GIVING BRAINLIEST!!!!!!

In which step does a mistake first occur? (24+3+10)-14+2
Step1: (8+10)-14+2
Step 2: 18-14+2
Step3: 4+2
Step 4: 2

Answers

A mistake first occurs in step 1. (24+3+10) is not equal to (8+10). It is equal to (27+10).

Which of the following is true of the values of x and y In the diagram below?

Answers

Answer:

There is no photo sorry

Step-by-step explanation:

The degree of the problem

Answers

Answer: A. 5

Step-by-step explanation:

PLEASE PLEASE HELP WITH THIS

Answers

Answer:

θ = 76°

Step-by-step explanation:

Using the cofunction identity

sinx° = cos(90 - x)°, then

sin14° = cos(90 - 14)° = cos76°

That is θ = 76°

Answer:

in radians o= 0.13716675

Step-by-step explanation:

cos(0)=0.9906074

O= arccos(0.9906074)

O=0.13716675

In AHIJ, HJ is extended through point J to point K, mZIJK = (7x – 15)°,
mZJHI
(3x + 18), and mZHIJ (x + 6)". Find mZJHI.

Answers

Answer:

3x + 18), and mZHIJ (x + 6)". Find mZJHI.

Step-by-step explanation:

it is 86[9=10+3]

A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples 41 specimens and counts the number of seeds in each. Use her sample results (mean = 54.7, standard deviation = 5.3) to find the 90% confidence interval for the number of seeds for the species. Enter your answer as an open-interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).

Answers

Answer:

(53.3; 56.1)

Step-by-step explanation:

Given that:

Sample size, n = 41

Mean, xbar = 54.7

Standard deviation, s = 5.3

Confidence level, Zcritical at 90% = 1.645

Confidence interval :

Xbar ± Margin of error

Margin of Error = Zcritical * s/sqrt(n)

Margin of Error = 1.645 * 5.3/sqrt(41)

Margin of Error = 1.362

Lower boundary = 54.7 - 1.362 = 53.338

Upper boundary = 54.7 + 1.362 = 56.062

(53.3 ; 56.1)

The Riddle Family has a total monthly budget of $3,400. If the utilities represent 15% of the budget, then how much money is the Riddle Family spending on
utilities each month?

Answers

Answer: $510

Step-by-step explanation:

Total monthly budget = $3,400.

Percentage of total budget spent on utilities = 15%

The amount that the Riddle Family spending on utilities each month will then be:

= 15% × $3400

= 15/100 × $3400

= 0.15 × $3400

= $510

Answer:

0.15 * 3400 = $________ utilities cost per month

Multiply the monthly cost by 12.

What is this (College Math)

Answers

Hi, Which math? Alegbra,calculus, or geometry?) lol

Step-by-step explanation:

find the measure for each angle indicated

Answers

Step-by-step explanation:

7. 180 -92 -67 =21. 180-21 = 159

8.180-144 = 36 + 94 = 130 180-130 = 50

Answer:

Step-by-step explanation:

TWO RULES:

⊳ Angles in a triangle add up to 180

⊳ Angles on a straight line also add up to 180

=================================================================

QUESTION 1

92 + 67 + x = 180

x + 159 = 180

x = 21

180 - 21 = 159

? = 159

=================================================================

QUESTION 2

144 + x = 180

x = 36

94 + 36 + ? =180

130 + ? =180

? = 50

=================================================================

!     HOPE I HELPED     !

Miss Johnson bought a roast that weighed 6lb. 4oz. What was the total cost of the roast if the cost per pound was $4.48.

Answers

Answer:

26.88$

Hope this helps :))

Help please! This is worth 50 points it'll mean a lot!

Answers

between 20 and 5000 characters

help this is urgent!!!

Answers

c = pi times d so that would mean d divided by pi would be the diameter.

to find the radius you would then have to take the diameter and times it by 1/2 bc r = 1/2 times d

i hope this helps

please help me PLEASE IM FUMB

Answers

Answer: 8

Step-by-step explanation:and what is fumb also hope this helps.

What is the missing length?

No links please! Giving out Brainliest too. :)

Answers

Answer:

300.46

Step-by-step explanation:

318.56cm - 18.1

Answer:

304

Step-by-step explanation:

hope it helped you out

If the parent function is y = 3^x,which is the function of the graph?

Answers

Answer:

[tex]y = 3x + _ 2[/tex]

Step-by-step explanation:

The graph of y = 3^x will pass through the point (0, 1).  This graph passes through the point (-3, 1); it has been shifted to the left 3 units.

A function can be translated, or shifted, to the left by adding a number to x before the function is applied; in this case, it means adding 3 to x before the base is raised to the power.  This gives us

This graph has also been translated, or shifted, down 2 units.  This can be done by subtracting a number from the end of the function; this gives us

Which equation finds the area of a square with a side length of 5 n Superscript 4 units?
(5 n Superscript 4 Baseline) squared = 25 n Superscript 8 square units
(5 n Superscript 4 Baseline) squared = 5 n Superscript 8 square units
5 (n Superscript 4 Baseline) squared = 5 n Superscript 8 square units
5 (n Superscript 4 Baseline) squared = 10 n Superscript 8 square units

Answers

Answer: A. (5 n Superscript 4 Baseline) squared = 25 n Superscript 8 square units.

{I’m not completely sure}

Answer:

A

Step-by-step explanation:

Squares are Equivalent, you need 4 to make a dollar, and they are worth 25c Each!

Just How I remember this.

Hope it Helps :D

Solving the following system using substitution method.
y=3x-6
y=x-10

Answers

Answer:

x = -2, y = -12

Step-by-step explanation:

x - 10 = 3x - 6

-2x = 4

x = -2

y = -2 - 10

y = -12

The gas mileage for Peter's car is 21 miles per gallon when the car travels at an average speed of 50 miles per hour. The car's gas tank has 17 gallons of gas at the beginning of a trip. If. Peter's car travels at an average speed of 50 miles per hour, which of the following functions fmodels the number of gallons of gas remaining in the tank thours after the trip begins? 21 A. f(t) = 17 - 50T B. f(t) = 17 - 500 21 17-500 C. f(t) 17-210 50 D. f(t) = 21​

Answers

Answer:

f(t)= 17- 50t/21

Step-by-step explanation:

distance covered after t hours= 50t miles

number of gal.=50t×1/21 =50t/21 gal.

f(t)=starting-consuming= remaining

= 17-50t/21

Answer:f(t)= 17- 50t/21

f(t)= 17- 50t/21

Step-by-step explanation:

distance covered after t hours= 50t miles

number of gal.=50t×1/21 =50t/21 gal.

f(t)=starting-consuming= remaining

= 17-50t/21

Micah's Allowance was increased from $6 a week to $9 a week. By what percent did his allowance increase?

Answers

Answer:

60%

Step-by-step explanation:

Im stuck in this question. Please someone help me

Answers

Answer:

b) The constant term is 8; The exponent of the third term is 1

WILL GIVE BRAINLIEST
The diagonals of a quadrilateral are 12 and 10. Is
this a parallelogram rectangle? Explain your answer

Answers

Answer:

the answer is no.a parallelogram is not a rectangular but the opposite is true. the reason is a cause of parallelogram's diagonals.they might not be equal in parallelogram but in rectangular they must be equal.

Step-by-step explanation:

Answer:

If both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram. So yes it is a parallelogram.

Step-by-step explanation:

Diagonals of parallelogram are not necessarily equal. This is a known property of a parallelogram. If all angles are equal, then it means its opposite angles are also equal which is a condition for a quadrilateral to be called parallelogram. If all sides are equal then, opposite sides are also equal.

which is a solutiom (x-3)(x + 9)=-27?​

Answers

The solution is x= 0,-6

Answer:

x = 0, -6

Step-by-step explanation:

(0 - 3)(0 + 9) = (-3)(9) = -27

(-6 - 3)(-6 + 9) = (-9)(3) = -27

+
Find the surface area of this cube. Be sure to include the correct unit in your answer.
3 m
3 m
3 m

Answers

answer is b.Step-by-step explanation:

Answer:

9m

Step-by-step explanation:

yw

Find n(A) for the set.
1) A = 200, 201,
202, ..., 2000)
A) n(A)= 1801
B) n(A)= 4
C) n(A)=2000

Answers

A=200,201,202.........,2000

Here, it forms an AP with common difference 1

Let the number of terms in the set be n

[tex] T_{n} = a+(n-1)d \\\\ 2000= 200+(n-1) \\\\ 200+n-1= 2000 \\\\ => n=2000-199= 1801[/tex]

Hence,n(A)=1801

32 × (3 + 2) + 8 ÷ 2 =
PLS ANSWER QUICKLY

Answers

Answer:

164

Step-by-step explanation:

Brackets
Indices
Division
Multiplication
Addition
Subtraction




32 x (5) + 8/2

32 x 5 = 160

8/2=4

160 + 4 = 164

The face of a fair sided cube are numbered 1-6 based on rhetorical probability if a number cube is rolled 60 times how many times should a 2 be rolled

Answers

Answer:

10

Step-by-step explanation:

P(2) = 1/6

1/6  = x/60

x = 10

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