The employees of a firm that manufactures insulation are being tested for indications of asbestos in their lungs. The firm is requested to send three employees who have positive indications of asbestos to a medical center for further testing. If 30% of the employees have positive indications of asbestos in their lungs, find the probability that eleven employees must be tested in order to find three positives. (Round your answer to three decimal places.)

Answers

Answer 1

Answer:

0.070

Step-by-step explanation:

Y = number on trial

Y has a negative binomial distribution

r = 3

P = 30% = 0.3 probability of positive indication.

P(Y = 11) probability of 11 employees that must be tested to get 3 positives

Y-1Cr-1*p^r*q^(y-r)

Y-1 = 11-1 = 10

r-1 = 3 -1 = 2

10C2 x 0.3³x0.7⁸

45x0.027x0.05764801

= 0.070

This is the probability that 11 employees must be tested to get 3 positives.


Related Questions

Use the expression 3-7p^2+11(4+n)3−7p 2 +11(4+n)3, minus, 7, p, squared, plus, 11, left parenthesis, 4, plus, n, right parenthesis to find an example of each kind of expression.

Answers

Answer:

2 - 4x² + 15(3 + y)

Step-by-step explanation:

Given.

3 -7p²+11(4+n)

Required

Write similar expression:

The given expression can be split into:

3, -7p² and 11(4 + n)

3 can be replaced with 2 or any number (but let's stick with 2).

-7p² can be replaced with -4x²

Lastly,

11(4 + n) can be replaced with 15(3 + y)

Bringing them together, we have:

2 - 4x² + 15(3 + y)

So, an expression similar to 3 - 7p² + 11(4 + n) is 2 - 4x² + 15(3 + y)

Please note that, there are other similar expressions

Answer:

difference: 3-7p^2

Factor: ( 4+n )

product: 11( 4+n )

Step-by-step explanation:

Which compound inequality describes the solutions graphed below?​

Answers

Answer:

A. x ≤ -2 or x > 3

Step-by-step explanation:

The number line shows two possible values of x which represents a compound inequality.

There are two arrows in opposite direction on the number line.

The arrow that starts at -2 and goes to your far left, has a shaded small circle "o". This connotes that -2 is included in the possible values of x. Thus, this means the possible value of x is equal to -2 or less than -2 ==> x ≤ -2.

The other arrow starts at 3 and has an unshaded small "o", implying that 3 is not included in the possible values of x. Thus, x > 3.

The compound inequality in the graph indicates either statement is true, since each solution do not overlap, hence, the word to use here would be "OR", showing a union.

Therefore, the solution of the compound inequality would be x ≤ -2 or x > 3.

need these asap I’m timed

Answers

Answer:

3)  8 x + 2 y + 2

4)38

5)x=2

6)y=3

Answer:

3. 8x - 2y - 2

4. 38

5. x = 2

6. y = 3

How much difference do a couple of weeks make for birth weight? Late‑preterm babies are born with 3434 to 3636 completed weeks of gestation. The distribution of birth weights (in grams) for late‑preterm babies is approximately ????(2750,560).N(2750,560). What is the probability that a randomly chosen late-preterm baby would have a very low birth weight, less than 15001500 grams? (Use technology and enter your answer rounded to four decimal places.)

Answers

Answer:

0.0128

Step-by-step explanation:

(Use technology and enter your answer rounded to four decimal places.)

We apply the z score formula to this question

z = (x-μ)/σ,

where x is the raw score

μ is the population mean

σ is the population standard deviation.

We are given: N(2750,560)

x = 1500 grams, μ = 2750 grams, σ = 560 grams

= z = 1500 - 2750/560

z = -2.23214

Determining the Probabilty value from Z-Table:

P(x < 1500) = P(z = -2.23214)

= 0.012803

Approximately to four decimal places = 0.0128

The probability that a randomly chosen late-preterm baby would have a very low birth weight, less than 1500 grams is 0.0128.

List the factors of 48

Answers

1, 2, 3, 4, 6, 8, 12, 16, 24, and 48

-1, -2, -3, -4, -6, -8, -12, -16, -24, and -48
1-48/2-24/3-16/4-12/6-8

Question 1 (2 points)
Bentley is trying to get better at skateboarding. He has a goal of skateboarding 5 miles total this week with two short runs and one longer run. His two short runs total 2.25 miles. How long will his long skateboard run need to be in order to hit his goal?

To find the length of Bentley’s long run, you would use:

5 – 2.25

Question 1 options:
True
False

Answers

Answer:

True

Step-by-step explanation:

If he is doing 2 short runs and one long run, and his 2 short runs equal 2.25 miles, you'd need to subtract them from the total to find out the long run.

A sales manager reports an increase of 28% in sales this year
compared to last
year.
The increase was $70 560.
What were the sales last year?​

Answers

Let x be the sales last year .

Then :-

[tex] \frac{28}{100} \: of \: x = \: \: 70560[/tex]

[tex] \frac{28}{100} x = 70560[/tex]

[tex]x = \frac{70560 \times 100}{28} [/tex]

[tex]x = \frac{7056000}{28} [/tex]

[tex]x = 252000[/tex]

Therefore , the sales last year was $252,000 .

please help I will give a lot of points


btw its 2 questions​

Answers

ummmmmmm.. wait ima come back to it let me work it it

Answer:

please wait two mins I will give you the answer, but which question 2 or 3

can someone give me the answers

Answers

Answer:You see if you want these answers your gonna need to give us more than 5 points for a whole paper of homework. Lma*

Step-by-step explanation:

HELP NEEEDED ASAP PLEASE!!!

Answers

Answer:

im pretty sure the answers are

A) 6

b) 10

16. The Venn diagram below represents two sets of numbers.
?
Integers
Which of the following would be the best label for the set represented by the
shaded circle?

Answers

Answer: D) Rational Numbers

Any rational number is in the form p/q, where p,q are integers and q is nonzero.

If we made q = 1, then p/q turns into an integer which is why the set of integers is inside the set of rational numbers.

For instance, if p = 7 and q = 1, then p/q = 7/1 = 7 is an integer and it is rational too.

Hi can you help me in this? Ann works in a supermarket for 10.00 pero hour She recieved a raise yo 12.00 what is the percent of chance in her hourlt wage?​

Answers

Answer:

20%

Step-by-step explanation:

GivenInitial wage = 10 peso/hourNew wage = 12 peso/hourSolution

The difference  

12 - 10 = 2 peso/hour

Percent of change

2/10*100% = 20%

4x/5 = 2x+4/3 Please hurry I’m in a rush

Answers

Answer:

x=10

Step-by-step explanation:

Answer:

x = - 5/3

Step-by-step explanation:

Calculate the product

4x/5 = 2x + 4/2

Reduce the faction with 2

4x/5 = 2x + 2

Multiply both sides of the equation by 5

4x = 10x + 10

Move variable to the left-hand side and change its sign

4x - 10x = 10

Collect like terms

-6x = 10

Divide both sides of the equation by -6

x = - 5/3

Solution

x = -5/3

Alternate form

x = -1 2/3, x = -1.6

Do you guys know the answer?

Answers

EFGH is twice the size of ABCD

7th grade math help me plzzzz

Answers

Answer:

b, c, f are coorrect inequalities

Step-by-step explanation:

hope i helped :D

The length of a rectangle is (3x − 5) inches, and its width is 2x inches. Find the area of the rectangle.

Hint: Area of a rectangle = length × width.

Answers

Answer:

A = 6x² - 10x

General Formulas and Concepts:

Area of a Rectangle: Length × Width

To expand, use FOIL - First, Outside, Inside, Last

Step-by-step explanation:

Step 1: Define variables

l = 3x - 5

w = 2x

Step 2: Find area

Substitute:                   A = (3x - 5)(2x)Expand (FOIL):            A = 6x² - 10x

Answer: A=6x^2-10x ✅

Step-by-step explanation:

Hii, do you need to find the area of the rectangle? Let me help you out! (:

Luckily, there's a formula to find this! (:

Area

To find the area of a rectangle, multiply its length times its width. This is shown below.

[tex]\LARGE\boldsymbol{A=L W}[/tex]

Here, "A" denotes the area

"L" denotes the length

"W" denotes the width

NB : "L" and "W" are interchangeable

Next, it's just a matter of sticking in the known values...

[tex]\twoheadrightarrow\sf A=2x(3x-5)[/tex]

===> it's perfectly legal to stick in the values the other way around, because they are interchangeable

Alright, the next step is to multiply the values...

[tex]\twoheadrightarrow\sf A=(2x\cdot3x)-(2x\cdot(-5)[/tex]

Then we need to simplify...

[tex]\twoheadrightarrow\sf A=6x^2-10x[/tex]

Voila! There's the area of this rectangle! (:

Cheers! (:_______________

Hope I helped! Best wishes.

⚜ Reach far. Aim high. Dream big. ⚜

_______________

9. What is the likelihood that a randomly selected couple's relationship survived between 90 and 150 days

Answers

Answer:

0.5818

Step-by-step explanation:

Suppose the average teenage romantic relationship is normally distributed with a mean number of 100 days with a standard deviation of 30 days.

Answer:

The z score is used to determine how many standard deviations that the raw score is above or below the mean. If the z score is positive then the raw score is above the mean and if it is negative then it is below the mean. It is given by:

[tex]z=\frac{x-\mu}{\sigma}\\ \\where\ \mu=mean,\sigma=standard\ deviation, x=raw\ score[/tex]

Given that:

[tex]\mu=100\ days,\sigma=30\ days\\\\For\ x=90\\\\z=\frac{90-100}{30} =-0.33\\\\For\ x=150\\\\z=\frac{150-100}{30} =1.67[/tex]

Therefore, from the normal distribution table, P(90 < x < 150) = P(-0.33 < z < 1.67) = P(z < 1.67) - P(z < -0.33) = 0.9525 - 0.3707 = 0.5818

please help i’ll give the brain

Answers

Answer:

a. it depends if you're rounding it.

Step-by-step explanation:

45 pounds is 20.4117 kilograms.

Answer: C, 50.

Step-by-step explanation:

So there are talking about ¨much¨ you have to multiply/simplify the same number.

Which equals to 50 kilograms.  

Hope this helps.

Have a good night ma´ám/sir.

Be safe!

f(x) = 2( x ) + 10, Solve when given f(x) = -22 sorry it’s just I didn’t get function notation

Answers

Answer:

x=-16

Step-by-step explanation:

[tex]2x + 10 = - 22[/tex]

[tex]2x = - 22 - 10 = - 32[/tex]

[tex]x = - 32 \div 2 = - 16[/tex]

16 i think lol (x=16)

A crew of highway workers paved1/4 mile in1//6 a hour. If they work at the same rate, how much will they pave in one hour?​

Answers

Answer:

1 1/2 mile

Step-by-step explanation:

In 1 hour they pave 6 times more what they paved in 1/6 of an hour.

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

help with math pls pls

Answers

Answer:

62 degrees

Step-by-step explanation:

If 167 degrees is the whole angle measurement, then you take 167-105.

Which situation represents a total change in value of 0?
A) You climbed 15 feet up a tree before coming back down 15 feet,
B) You climbed 3,000 feet up a mountain and then climbed down 1,000 feet to camp.

Answers

Answer:

A) You climbed 15 feet up a tree before coming back down 15 feet

Given f(x)=18x +8, find x when f(x) =14

Answers

Answer:

x=1/2 or x=0.5

Step-by-step explanation:

14=18x+8 so 18x =6 so x=1/2

Answer:

x = 1/3

Step-by-step explanation:

14 = 18x + 8

Subtract 8 from both sides.

6 = 18x

Divide both sides by 18.

6/18 = x

Simplify.

1/3 = x

What were early village leaders responsible for? Choose four answers.

Ο Making laws
Ο Making punishments
Ο Trading with other villages
Ο Building permanent houses
Ο Maintaining order
Ο Settling disputes

Answers

It’s second from last Maintain order

Answer: is A,B,E,F

Step-by-step explanation:

If this is right pls like and give me 5 star, it would really help. Thank You

Which equation would help determine the cost of 4 erases?
Choose 1 answer

Answers

Answer:

explain in details pls

The ratio of dogs to cats at a local animal shelter is 13/25. Which statement must be true?

Answers

Option:

a. for every 13 dogs, there are 25 cats.

b. there are twice as many cats as dogs at the shelter.

c. the shelter has more dogs than cats.

d. there are 25 animals in the shelter.

Answer:

a. for every 13 dogs, there are 25 cats.

Step-by-step explanation:

Represent Dogs with D and Cats with C;

So;

[tex]\frac{D}{C} = \frac{13}{25}[/tex]

By comparison:

[tex]D=13[/tex]

[tex]C = 25[/tex]

This implies that:

For every 13 D, there are 25 C

Hence: Option A is true

Consider Jaspers balance sheet.
What is the total value of Jaspers assets?
$4,460
$11,340
—-$15,800
$20,260

What is the total value of Jaspers liabilities?
——$4,400
$11,340
$15,800
$20,260

Answers

Answer:

Consider Jasper’s balance sheet.

What is the total value of Jasper’s assets?

✔ $15,800

What is the total value of Jasper’s liabilities?

✔ $4,400

Step-by-step explanation:

The total value of Jaspers assets is $15,800 and  the total value of Jaspers liabilities is $4,400.

What do you mean by Assets?

Anything that will or now has economic worth to a company is considered an asset. Assets are essentially anything that a firm controls and owns that is currently valuable or has the potential to be profitable in the future.

A balance sheet is a financial statement that lists the assets and liabilities of a corporation at a certain point in time. It is one of the three primary financial statements—the other two being the income statement and cash flow statement—that are used to assess a company's performance.

The three forms of balance sheets are: Comparative balance sheets, Vertical balance sheets and Horizontal balance sheets.

Therefore, Value of assets is $15,800 and value of liabilities is $4,400.

Learn more about Assets, here;

https://brainly.com/question/13848560

#SPJ2

Solve the inequality and graph the solution. 1/2x < 6​

Answers

Answer:x<12

Step-by-step explanation:

2/1 x 1/2x<6/1 x 2/1

X<12


A writer gets paid a writer's fee of $3000 plus
$1.50 for each copy of the book that is sold. Create
a function rule for this situation.

Answers

Answer:

y = 1.50x + 3000

Step-by-step explanation:

Round the decimal to a place of the underlined digit 5.657

Answers

Answer:

5.6

Step-by-step explanation:

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