A shipment of 12 microwave ovens contains 2 defective units. A restaurant buys 4 of these units. What is the probability of the restaurant buying at least 3 nondefective​ units? The probability of the restaurant buying at least 3 nondefective units is

Answers

Answer 1

Answer:

91%

Step-by-step explanation:

we can use combinations:

Total probabilities = 12! / (4!8!) = 479,001,600 / 967,680 = 495

Probability of no defective unit = ₁₀C₄ = 10!/4!6! = 3,628,800 / 17,280 = 210

Probability of one defective unit = ₁₀C₃ · ₂C₁ = 10!/3!7! · 2!/1! = 120 · 2 = 240

Probability of no more than one defective unit = (210 + 240) / 495 = 450 / 495 = 91%


Related Questions

3. You receive an order for 0.5 g of Tigan IM. You have a 5 mL vial labeled 100 mg/mL. What is the
volume you will need to fill the order?
a. 2 mL
c. 0.5 mL
b. 5 mL
d. 0.02 mL

Answers

Answer:

52

Step-by-step explanation:

I need help again please help me with this question

Answers

Answer:

The size of a sundae and the amount of calories it contains.

Step-by-step explanation:

The answer choice is the only one with a positive correlation, because it is the only one that isn't depleting or going down in size. No matter if you eat the sundae or what size it becomes, the calories it contains will still be the same for the whole amount.

When a car travels, gas is used and it depletes. As a snowball does when it melts. And "the temperature on Tuesday" has no correlation involved at all

Mason Crosby kicked a career long 61 yard field goal. How many feet did the ball travel?

Answers

Answer:

fgqwefgwdgnbn8jhvdsihijhofwebhiwg7dyhdg h hy7rhbfwe  r2eery

Step-by-step explanation:

sdheeht vuhudfvbujhnrsdgbkbhdpouibeihbrtuiovb esg7veg8sgxvuew hr 8b0uw e

PLEASE ITS DUE IN 3 MINUTES-

Mr. Tucker earns $250 per week working in an appliance store. In addition, he earns 2% commission on all of his sales. Last week, he sold $2,800 worth of appliances. What was Mr. Tucker’s total income for the week?

Answers

Answer:

306 dollars is his total income

Step-by-step explanation:

You just have to multiply 2,800 dollars by 0.02 because the commission is 2%. when You multiply both the product is 56. Add 56 to his weekly income of250 and dolars and you get. 306 dollars for this weks total income.

i need help on 23 !!

Answers

Answer:

Step-by-step explanation:

1/4 * 2/3 = 2 / 12 = 1/6

8. King has started jumping rope as part of his exercise routine. He keeps track of his jumps and time spent jumping to map his progress. Most recently, he jumped 497 times in 7 minutes. Which of the following describes king's pace?​

Answers

Answer:

cockdabackdecockdacoin

Step-by-step explanation:

huuuuuuuuuuuuuuuuuuuuu

Answer:

71 times per minute

Step-by-step explanation:     497/7=71

What does 2.89x0.79x1.35= equal?

Answers

Answer: 3.082185x^2

Step-by-step explanation: Find the exact value using trigonometric identities

HOW DO U SIIMPLIFY FRACTIONS!!!!!!!! IM NOT ON A TEST BUT I NEED TO KNOW I WAS ABSENT!!!!!!!!!!!!!!!!!!!!!PLZZZZZZZZZZZZZZZZZZZZZ HELP ASAP

Answers

Answer:

Following are the steps to simplify mixed fractions: Find the highest common factor (HCF) of numerator and denominator of the fraction part. Divide both the numerator and the denominator by HCF. The whole number part will remain the same.

Step-by-step explanation:

HELPPPP PLZ
Savannah drew a map of Texas for her Geography class. According to Savannah’s map scale, one-half inch on the map represents approximately 77.5 kilometers. If the actual distance from Austin to El Paso is approximately 930 kilometers, what is the approximate distance between Austin and El Paso on Savannah’s map?
A.24 inches
B.2 inches
C.6 inches
D.12 inches

Answers

Answer:

A

Step-by-step explanation:

A patio 44, feet wide is being constructed next to a house. To drain water off the patio and away from the house, a slope of 1/2 inch per foot is necessary. What total

difference in height is required from one edge of the patio to the other?

Answers

Answer:

the total difference in height will be 22 inches

Step-by-step explanation:

since the slope is 0.5 inch per foot, and the patio is 44 feet wide, the end of the patio will be 0.5 x 44 = 22 inches lower

the slope measures how much the height (Y axis) will change as the length (X axis) increases by 1 unit. In this case, since the height decreases as the length increases the slope is negative.  

A researcher developing scanners to search for hidden weapons at airports has failed to conclude that a new scanner is significantly better than the current scanner. He made his decision based on a test using α=0.025.

a. Would he have made the same decision at α=0.20?
b. How about α=0.005? Explain.

Answers

Answer:

a. not sure

b. yes

Step-by-step explanation:

According to the given scenario, the following information is mentioned

[tex]\alpha[/tex] =0.025

In the case when the alpha is equivalent to 0.025 so the p test value would be more than the significance level i.e. 0.025 as the prescribed test is not important

So here

p>0.025

In the above case i.e. p>0.025 this does not mean that p>0.2 so we are not sure about this case whether he made teh same decision or not

Now in the another case, if the significant level is 0.005 so we are sure that p>0.005 as it is more than 0.025 so here also the test is not significant

So, here the same decision could be made

the scott family is trying to save as much money as possible

Answers

Do you have any more context ?

-12x4m8n 6x5m-10n-6​

Answers

Answer:

whats the qeustion

Step-by-step explanation:

What’s the question ?

Complete the table by finding the balance A when P dollars is invested at rate r for t years and compounded n times per year. (Round your answers to the nearest cent.)
P = $2500, r = 3%, t = 10 years
n A
1 $
2 $
4 $
12 $
365 $
Continuous $

Answers

Answer:

I had this exact question on my test yesterday! That's so crazy!

Step-by-step explanation:

In a semiconductor company's quality control test, a machine found that 14 out of a sample of 234 computer chips were defective. How many of the 4705 such chips that the company makes each month would you expect to be defective?

Answers

Answer:

281-282

Step-by-step explanation:

A long year-end status report for work is 81 pages long. You need to print 12 copies for a meeting next week. How much is the paper going to cost for those reports? Paper is sold in reams (500 pages) for $3.96 each.

Give your answer to the nearest cent, only for the paper you use (partial reams are OK)

Answers

Answer:

770cents

Step-by-step explanation:

If a report is 81 pages long, 12 copies will be (81 * 12)pages long

12copies = 972 pages long

If 500 pages costs $3.96 each

972 pages will cost $x

Cross multiply

500x = 972 * 3.96

500x = 3,849.12

x = 3,849.12/500

x = 7.69824

Hence the cost of the reports is $7.69824

Convert to cents;

$1 = 100cents

$7.69824 = y

y = 7.69824 * 100

y = 769.824 cents

y ≈ 770 cents (to the nearest cent.)

Hence the paper is going to cost 770cents (to the nearest cent)

simplyfy
5xxx
6xxxy
2xxx3xy

Answers

Answer:

5xxx + 2xxx +6xxxy + 3xy

7xxx + 6xxxy + 3xy

Step-by-step explanation:

Answer:

[tex]5x^3,6x^3y,6x^4y[/tex]

Step-by-step explanation:

First  we write the x factors in exponential form (using powers)Just count the number of x and then use that number as the powerso [tex]5xxx=5x^{3}[/tex]  since we have 3 x'sthen [tex]6xxxy=6x^3y[/tex] same as the firstFor the third one, group the numbers together and each letter with its group so [tex]2xxx3xy=2*3*xxxx*y[/tex] then multiply the numbers and change x in exponent formthen [tex]2*3*xxxx*y=6*x^4*y=6x^4y[/tex]

1) Fairview and Abbots Rise are 5 in apart on a map that has a scale of 1 in : 18 mi. How far apart are the real cities? 2) A particular satellite is 12 ft wide. A model of it was built with a scale of 1 in :3 ft. How wide is the model? Please help me I have 4 more questoins

Answers

Answer:

1) 90 mi

2) 4 inch

Step-by-step explanation:

1)

Given that the distance between Fairview and Abbots Rise on the map = 5 in

Scale of the map = 1 in: 18 mi

i.e. 1 inch on map is equivalent to an actual distance equal to 18 mi between the cities.

Given that the map has a distance of 5 inches.

Therefore, the actual distance between the cities = 5 [tex]\times[/tex] 18 = 90 mi

2) A particular satellite is 12 ft wide.

Model's scale = 1 in : 3 ft

i.e. 1 inch on map is equivalent to actual distance of 3 ft.

OR

3 ft of actual distance = 1 in on map

1 ft of actual distance = [tex]\frac{1}{3}[/tex] in on map

12 ft of actual distance = [tex]\frac{1}{3}\times 12 = \bold{4\ inch}[/tex]

The perimeter of the rectangle below is 134 units. Find the length of side RS. Write your answer without variables

Answers

Answer:

RS = 30 units

Step-by-step explanation:

Given:

Length (PS) = [tex] 4y + 1 [/tex]

Width (PQ) = [tex] 3y + 3 [/tex]

Perimeter = 134 units

Required:

RS (width)

SOLUTION:

Perimeter of a rectangle = 2(length + width)

Plug in the values into the equation

134 = 2[(4y + 1) + (3y + 3)]

134 = 2[4y + 1 + 3y + 3]

134 = 2[7y + 4]

134 = 14y + 8

Subtract 8 from each side of the equation

134 - 8 = 14y

126 = 14y

Divide both sides by 14.

126/14 = 14y/14

9 = y

y = 9

✍️RS = Width (PQ) = [tex] 3y + 3 [/tex]

Plug in the value of y

RS = tex] 3(9) + 3 [/tex]

RS = tex] 27 + 3 [/tex]

RS = 30

Joe scored 88% on a test. He answered 22 questions correctly. How many questions were on the test

Answers

If Joe got an 88% on a test, answering 22 questions correctly, then there were 25 questions on the test. Divide 22 by 88 and multiply by 100 to find this answer. Please vote my answer as brainliest. I hope this helps

Calculate the equation of the line through the points (-1, 1), (4,0), and (24,-4).

Answers

Answer:

slope intercept form: y=-1/5x + 4/5

Approximate the logarithm using the properties of logarithms, given
logb 2 ≈ 0.3562,

logb 3 ≈ 0.5646,
and
logb 5 ≈ 0.8271.
(Round your answer to four decimal places.)
㏒b(2b^3)

Answers

que representa Laos hombres con relacion al total

I need help with this question

Answers

Answer:

dfjkdhfhdsjfkldsjkljsdk;lv

Step-by-step explanation:

fjwdnjksnvl;snv;s

The length of Line AB would be 40

the weights of steers in a herd are distributed normally. the standard deviation is 200lbs and the mean steer weight is 1400lbs. find the probability that the weight of a randomly selected steer is less than 1859lbs

Answers

Answer:

The probability that the weight of a randomly selected steer is less than 1859lbs is 0.9890

Step-by-step explanation:

Given

Mean = 1400 lbs

SD = 200 lbs

In order to find the probability of a random variable x we have to find the z-score of the data point.

z-score is calculated by:

[tex]z = \frac{x-mean}{SD}[/tex]

Putting x=1859

[tex]z = \frac{1859-1400}{200}\\z = \frac{459}{200}\\z = 2.295[/tex]

The z-score for 1859 is 2.295

We have to use the z-score table to find the required probability

So,

[tex]P(z<2.295)\ or\ P(x<1859) = 0.9890[/tex]

Hence,

The probability that the weight of a randomly selected steer is less than 1859lbs is 0.9890

If the measures of Angle 3 is 46 degrees , how much is the measure of angle 6?

Answers

Answer:

Angle 6 = 46°

Step-by-step explanation:

They are alternate interior angles which mean they are congruent

A swimming pool has two pipes coming into it to fill it with water. One pipe takes 16 hours to fill it. The other takes 12 hours to fill it. How many hours will it take both pipes to fill the pool?

Answers

Answer:

8 hours

Step-by-step explanation:

8 hours because half of 16 is 8 and half of 12 is 6

If it takes 6 hours to fill one half then the other 2 hours would go to the other pipe making it 8 hours

x^2+8x=0

what is the sum of the solutions? please help me!!​

Answers

Answer:

Step-by-step explanation:

0

,

8

-5/4c - 1/2 = -3/4 + 5/8c​

Answers

Answer:

c=2/15 have a great day! :D

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

Step 2: Subtract 5/8c from both sides.

Step 3: Add 1/2 to both sides.

Step 4: Multiply both sides by 8/(-15).

A rectangular prism has a volume of 686 cubic units. How many unit cubes would fill the volume of the solid if they were packed without any gaps or overlaps?

Answers

Answer:

2 unit cubes of 7 units side length can fill the volume of the solid without overlap

Step-by-step explanation:

Volume of a cube is L^3

Let the number of cubes be n

Since the cubes are similar,

then;

nL^3 = 686

nL^3 = 343 * 2

By inspection

L^3 = 343 (since it is a perfect cube and the cube root is 7)

n = 2

How many squares are in the 20th case​

Answers

Answer:

400

Step-by-step explanation:

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