The true length of recovery for patients with knee surgery is normally distributed with a mean of 123 days and a standard deviation of 1 day. What proportion of the patients will recover between 121 and 124 days?

Answers

Answer 1

Answer:

0.81859

Step-by-step explanation:

Given that the length of recovery days for patients with knee surgery is normally distributed with :

Mean, μ = 123 days

Standard deviation, σ = 1 day

The proportion of patients that will recover with 121 and 124 days :

We obtain the Probability of Z score :

Z = (x - μ) / σ

P(Z < (x - μ) / σ) < Z < P(Z < (x - μ) / σ)

P(Z < (121 - 123) / 1) < Z < P(Z < (124 - 123) / 1)

P(Z < - 2) < Z < P(Z < 1)

Using the normal distribution table :

P(Z < 1) - P(Z < - 2)

0.84134 - 0.02275

= 0.81859


Related Questions

PLS HELP! What is the mistake made below in solving x2 – 12x + 10 = 0 using the completing the square method?

x2 – 12x + 10 = 0

x2 – 12x + (- 6)2 = - 10 + (- 6)2

x2 – 12x + 36 = 26

(x – 6)(x – 6) = 26

x – 6 = √26

x = 6 + √26

Answers

Answer:

Step-by-step explanation:

Everything is correct. But you forgot to add

x = 6 - square root of 26. The answer is

x = 6 + square root of 26 or

x = 6 - square root of 26

Which expression is not a polynomial

Answers

Answer:

the last option [tex]x^{3}[/tex] + 1 / x

Step-by-step explanation:

first option's x has the power 3

second option's x has the power 1

third option's x has the power 1

but in the last option it has the power -1

polynomials doesn't support negative power

*remember

8x + 2 = = 7 + 5x + 15

Answers

Answer:

2.5

Step-by-step explanation:

8x + 2 = 7 + 5x + 15

Combine like terms:

8x + 2 = 7 + 5x + 15

8x + 2 = 22

      -2     -2

-----------------

8x = 20

----    ----

8       8

x = 2.5

Hope this helped.

Cj took a math test and got 36 correct and 9 incorrect answers. What was percentage of correct answers?

Answers

Answer:

Step-by-step explanation:

Your answer would be 80% or a B

Draw the line segment with endpoints (-5, 9) and (-1, -7) and find the value of y if x=-4;-2.5;-2;-1.5;0 plz answer asap

Answers

Answer:

5, - 1, - 3, - 5, - 11

Step-by-step explanation:

The equation of the line is y=-4x-11. The y values corresponding to x are 5, - 1, - 3, - 5, - 11

Can someone help me with this?

Answers

Answer:

183.3 in^3

Step-by-step explanation:

Find the volume of the rectangular bottom

V = l*w*h

V = 5*5*6 =150 in^3

Find the volume of the triangular pyramid

V = 1/3 Bh where B is the area of the base and h is the height

V = 1/3 ( 5*5) * 4 = 100/3

Add the two volumes together

150 + 100/3

150 +33.3

183.3 in^3

A 40-foot tree casts a shadow 60 feet long. How long would the shadow of a 6-foot man be at that time?​

Answers

Answer:

26 ft

Step-by-step explanation:

I'm guessing this is how it's done

60-40= 20

there for at this time any shadow would be 20x it's original height/length

so 6+20=26 ft

lmk if I'm correct

Taking ratios

Let the shadow length=x ft

[tex]\\ \sf\longmapsto 40:60=6:x[/tex]

[tex]\\ \sf\longmapsto \dfrac{40}{60}=\dfrac{6}{x}[/tex]

[tex]\\ \sf\longmapsto \dfrac{4}{6}=\dfrac{6}{x}[/tex]

[tex]\\ \sf\longmapsto 4x=6(6)[/tex]

[tex]\\ \sf\longmapsto 4x=36[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{36}{4}[/tex]

[tex]\\ \sf\longmapsto x=9[/tex]

amortization for house costs 35,000.00 at 6.5% interest for 10 years and payments of 400.00 were paid for 36 months what is the remaining balance

Answers

Answer:

$26,640.22

Step-by-step explanation:

PLS PLS PLS HELP QUICKKKK

Find the value of x in each case

Answers

Answer:

KI and HE are parallel

So we apply the law of exterior angles ;

3X=X + 180– 2X

3X +X = 180

4X= 180

X= 180/4

X= 45

I hope I helped you^_^

To mail an envelope first class the us pot charges 0.32 cents for the first ounce and 0.24 cents for each additional ounce. Use an inequality to find the maximum number of whole ounces that can be mailed for $7.98

Answers

Answer:

Not sure about the inequality, but maximum ounces is 31 ounces.

Might be.

[tex]7.98 \geqslant .24x + .32[/tex]

8x-5/6x
Find all real numbers for which the rational expression is undefined

Answers

9514 1404 393

Answer:

as written: noneperhaps intended: 0

Step-by-step explanation:

The expression written here is interpreted according to the Order of Operations as ...

  8x -(5/6)x

This reduces to (7 1/6)x, which is defined for all real numbers.

__

Maybe you intended the expression ...

  (8x -5)/(6x)

This expression is undefined where its denominator is zero, at x = 0.

Simplify: [tex]\sqrt{36} - \sqrt{6} + \sqrt{126}[/tex]

Answers

The answer is option (A)
Here’s the solution
Hope you understand it!!

any equations that equal three?

Answers

0+3=3 so I hope that helps
1•3=3 or 4-1=3 try those equations

For the function F defined by F(x) = x2 – 2x + 4, find F(b+3).

Answers

Answer:

[tex]\displaystyle F(b + 3) = b^2 + 4b + 7[/tex]

Step-by-step explanation:

We are given the function:

[tex]\displaystlye F(x) = x^2 - 2x + 4[/tex]

And we want to find F(b + 3).

We can substitute:

[tex]\displaystyle F(b + 3) = (b + 3)^2 - 2(b+3) + 4[/tex]

Expand:

[tex]\displaystyle = (b^2 + 6b + 9) + (-2b -6) + 4[/tex]

Rearrange:

[tex]\displaystyle = (b^2) + (6b-2b) + (9 - 6 + 4)[/tex]

Combine like terms. Hence:

[tex]\displaystyle = b^2 +4b + 7[/tex]

In conclusion:

[tex]\displaystyle F(b + 3) = b^2 + 4b + 7[/tex]

The graph shows the solution of the following system of equations. y=-5/3x+3 y=1/3x-3 What is the solution? A. (-3,2) B. (3,2) C. (-3,-2) D. (3,-2)

Answers

Answer:

(3,-2)

Step-by-step explanation:

-5/3x + 3 = 1/3x - 3

-5/3x = 1/3x - 6

-2x = -6

x = 3

y = -5/3(3) + 3

y = -5 + 3

y = -2

find x

please help!!​

Answers

Answer:  [tex]9\sqrt{3}[/tex]

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

Explanation:

For any 30-60-90 triangle, the short leg is always half the hypotenuse.

This makes the short leg to be 18/2 = 9 units long.

We then multiply this by [tex]\sqrt{3}[/tex] to get the length of the long leg.

[tex]\text{long leg} = (\text{short leg})*\sqrt{3}\\\text{long leg} =9\sqrt{3}[/tex]

Or you could use the pythagorean theorem to solve [tex]x^2+9^2 = 18^2[/tex] and you should get [tex]x = \sqrt{243} = 9\sqrt{3}[/tex]

On Monday, Main Street station sells 40 tickets.

There are four types of ticket; infant, child, adult and senior.

The bar chart shows the number of infant, child and adult tickets sold.


How many Senior tickets sold ?

Find how many adult tickets were sold than child tickets ?

BOTH QUESTION MUST BE ANSWERES

BEST ANS IS ALWAY MARKED BRAINLIST

NO FAKE

Answers

Answer:

How many Senior tickets sold ?

0

Find how many adult tickets were sold than child tickets ?

5

Step-by-step explanation:

Answer:

:];];]

u know

meeeeeeeeeeeeeeeeeeeeeeeeeeeee

brainlistttt

cutie

k?

Step-by-step explanation:

Convert the degree measurement to radians. Express answer as multiple of π: - 60°
A. π/3
B. −π/4
C. −π/5
D. −π/3

Answers

Answer:

-pi/3

Step-by-step explanation:

To convert from degree to radians, multiply by pi/180

-60 * pi/180 =  -60/180 *pi = -pi/3

Answer:

D. -pi/3

Step-by-step explanation:

degree to radians formula: x=degree, x*pi/180

x=-60

-60*pi/180=-pi/3

PLEASE HELP!!!!!!!!!!!!!!!! (answer in decimal!!!!!!!!)

Answers

9514 1404 393

Answer:

  0.75

Step-by-step explanation:

You know that ...

  P(S or T) = P(S) +P(T) -P(S and T)

When events are mutually exclusive, P(S and T) = 0. Then ...

  P(S or T) = 5/8 + 1/8 = 6/8 = 3/4

  P(S or T) = 0.75

A study examines the relationship between being a registered nurse (yes/no) and passing a cultural competency exam (yes/no) among a group of 987 randomly selected employees at your hospital. What test would be appropriate to determine if there is an association

Answers

Answer:

The appropriate test to determine if there is an association between being a registered nurse and passing a cultural competency exam among a group of 987 randomly selected hospital employees is a:

Chi-square Test.

Step-by-step explanation:

The Chi-Square Test uses either a diagram (like a scatter plot) or a hypothesis test to show the existence of an association between two variables or statistically demonstrate that a relationship exists between the two variables.  Using the computed t-score, the significant association between two categorical variables can be measured and established.

There are 36 tables and 7 booths in the family restaurant. Each table seats 4 people. If the restaurant can seat up to 179 people, what is the capacity of each booth?

4 people

5 people

6 people

7 people

Answers

Answer:

5 people.

Step-by-step explanation:

First we need to find how many people 36 tables seats. In order to do this, we need to multiply 36 (tables) by 4 (people sitting) to get 144. Now just subtract 144 from 179 to see how many people are left, here we get 35. Since there are 7 booths, we divide 35 by 7 to get 5. Each booth holds 5 people.

(179-36x4)/7=5

What fraction must be subtracted from the sum of 1/4 and 1/6 to have an average of 1/12 of all the two fractions

Answers

Answer:

so 1/3 must be subtracted from the sum of 1/4 and 1/6 to have an average of 1/12 of all the two fractions.

Step-by-step explanation:

let the fraction be x

(1/4 + 1/6)-x =  1/12

or, 10/24 - x = 1/12

or, 5/12-1/12 = x

so, x = 4/12 = 1/3

how induction coil work​

Answers

Answer:

Induction produces an electromagnetic field in a coil to transfer energy to a work piece to be heated. When the electrical current passes along a wire, a magnetic field is produced around that wire

Step-by-step explanation:

Solve the inequality

Answers

Answer:

hope this helps buddy, please mark the brainliest.

Step-by-step explanation:

what is 88.92 x 21.33

Answers

Answer:

By multiplying 88.92 from 21.33 we get 1896.6636.

Hope it's helpful

Answer:

1896.6636

Step-by-step explanation:

Hope this helps

a team's stadium has a capacity of 86,047. The fan base is notorious for selling out of tickets every game. If every game sells out this year, how many tickets are sold in their 12 game regular season play?

Answers

Answer:

1,032,564 tickets

Step-by-step explanation:

Find how many tickets they sell in total by multiplying the capacity of the stadium by the number of games in the season:

86,047(12)

= 1,032,564

So, if every game sells out, 1,032,564 tickets will be sold.

An exterior angle of a regular polygon cannot have the measure of
Select one:

a. 120

b. 40

c. 50

d. 90

e. 30


Answers

Option c 50 cannot be the measure of exterior angle. therefore only the angle which can evenly divides 360 can be the measure of exterior angle.
Yea it most definitely letter c

Help!!????
Please!!!????

Answers

Answer:

true

mark me brainist if it comes out to be true

Answer:

The answer is TRUE.

Step-by-step explanation:

what is the answer I need help?

Answers

Answer:

8 1/8 units^3

Step-by-step explanation:

This figure is a rectangular prism, and the volume of a rectangular prism is given by the formula:

lwh

But since we have the area of the base snd the height of the figure, there is also one formula that we can use to find the volume:

bh

Which means area of base times the height.

USE THE FORMULA bh:

16 1/4 x 1/2

= 65/4 x 1/2

= 65/8

SIMPLIFIED: 8 1/8

Volume is measured in cubic units

SO YOUR ANSWER IS 8 1/8 units^3

Which group of numbers is ordered from LEAST to GREATEST?



Select one:

A.
246,263, 250,100, 250,000


B.
250,100, 246,263, 250,000,


C.
246,263, 250,000, 250,100,


D.
250,100, 250,000, 246,263,

Answers

C is the correct answer
Other Questions
Identify the verb and its mood in the sentence below."Jamile takes the bus home today." Angie needs a new dishwasher. She saw a great sale on the model she wanted and went down to her local appliance store. When she got there, the store owner said that they no longer had that dishwasher, but they would be happy to sell her a different model at a higher price. Why might the Federal Trade Commission be willing to look into this?A. It is false advertising.B. It is creating an invalid debt.C. It is preventing fair competition.D. It is an improper debt collection. NEW YORK, July 19 (Reuters) - A rapid rise in new cases in the United States and other countries has heightened fears of a renewed outbreak and triggered a shockwave in the stock market as the highly contagious Delta variant of the virus began to spread and vaccinations lagged in several U.S. states. What was the impact of the Griswold Connecticut ruling?O Couples were required to keep mamage vows private.O Couples were allowed to keep their marriage decisions privateO Couples were expected to obey state law regarding marriageO Couples were encouraged to regard their marriage as sacred what were the personal liberty laws and what were they meant to do there are 10 boys and 6 girls. How many ways are there to choose 8 people to get at most 5 girls Evaluate the expression.I-4|PLEASE HELP BAHIAJSUEKSJN Someone please help me with this Solve the formula for the specific variable Z=x-y/3Y=____ help pllsssssssssssss How many neutrons does Carbon- 14 and Carbon -15 have? * Why did Kii Yazhi get his mouth washed out with soap? S nghim ca pt | 2x-3| - | 3x+2|=0 l? Pls help me ! L need help here There is 10% salt solution and a 30% salt solution. How much of each is needed to make 10L mixture that is 25% salt solution? Explain relationship of cells,tissues,organs and system ______ occur whenever a third party receives or bears costs arising from an economic transaction in which the individual (or group) is not a direct participant.a. Pecuniary benefits and costsb. Externalitiesc. Intangiblesd. Monopoly costs and benefits Which behavior can reduce one's risk of acquiring a sexually transmitted infection (STI)? 7. In which step does a mistake first occur?8 + 2 + (3 X 3 -2)Step 1: 8 +2 + (3 x 1)Step 2: 8 +2 + 3Step 3: 4 + 3Step 4: 7 Write the equation of the circle in standard form with the center located at (-2, 5) and radius of 3.