It is well known that steroid usage is banned in athletes. As a result, athletes are randomly tested. The steroid test procedures are believed to be equally effective on both steroid users as well as non-steroid users. The effective rate is 98%. Assume 90% of the athletes are clean (not steroid users). Suppose an athlete is tested as a steroid user (and thus could be disqualified from the Summer Olympics games), what is the probability that the athlete is actually clean (i.e., not a steroid user)

Answers

Answer 1

Answer:

18% that the athlete is disqualified but is actually clean

Step-by-step explanation:

In order to find the probability of two events happening together, in this case the athlete being disqualified and being clean, we need to multiply the probabilities. So,

It is a 90% chance that the athlete is clean and a 2% chance that the test fails so multiply the two

.9 * .2 = .18

This means that it is an 18% chance that the athlete is clean but is still disqualified.


Related Questions

input 3,4,5,6,7 output 14,20,26,32,38

Answers

Answer:

f(x) = 6x - 4.

Step-by-step explanation:

I guess you want the function which produces the outputs from the given inputs

The common difference in the outputs is 6.

The function is 6x - 4  where x is the input value.

the box plot shows the number of home run hit by 43 players during a baseball season.which statement best describe the the data

Answers

The number of data values between the lower quartile and the median is less than the number of data values between the upper quartile and the median. ( hope I helped have a good day )

A rectangular sheet of paper has an area of 1/2 square feet. The length of the paper is 2 feet. What is the width of the paper in feet? asap

Answers

Answer:

1/4 ft

Step-by-step explanation:

Area is equal to length times width

A = lw

1/2 = 2*w

Divide each side by 2

1/2 ÷2 = 2w/2

1/4 = w

Answer:

1/4 feet

Step-by-step explanation:

The formula for finding the area of a rectangle is A = lenght*width

1/2= 2*width

Width is 1/4 feet

Find the area of the figure

Answers

Answer: 60 ft

Separate into 2 rectangles and add their areas together!

Vertical rectangle area: 10 x 3 = 30 ft

Horizontal rectangle area: 10 x 3 = 30 ft

Area of entire thing: 30 + 30 = 60 ft

ABCD angles add up to 300⁰, what is the angle of B?​

Answers

Answer:

I don't know im sorry I wish I could help

Answer:

75

Step-by-step explanation:

You know hat there is 4 angles. You want to divide 300 by 4 since that's the tal out of all 4 ofangles.When u divide, you 75.

This is what I would  


A prism is unfolded. Which of the following faces can be considered a base?
Check all that apply.
Α. Α
B. F
C.G
D .D

Answers

I think A but not sure


Bapaphi earns 360 a week.He gets a pay rise of 10%.find his new wages a week.

Answers

Answer:

396

Step-by-step explanation:

100% = 360

10% = 100% * (10/100) = 100%/10 = 360/10 = 36

previous salary plus the 10% raise = 360 + 36 = 396 =

= new salary

A triangle shaped piece of paper has an area of 36 square centimeters and a base of 6 centimeters. Find the height.

Answers

Answer:

Area=bh/2

36=6h/2

6h=72

h=72/6

h=12 ans.

Answer:

Hєíght σf tríαnglє ís 12 cm.

Step-by-step explanation:

Gívєn :-αrєα σf tríαnglє = 36 cmвαsє σf círclє = 6 cm

fínd :-Hєíght σf tríαnglє

sσlutíσn :-

lєt , lєnght σf tríαnglє вє х .

wє knσw thαt

αrєα σf tríαnglє = вαsє × hєíght / 2

➟ 36 cm = 6 × х / 2

➟ 36 cm = 6 х / 2

➟ 36 cm × 2 = 6 х

➟ 72 cm = 6 х

➟ 72 cm / 6 = х

➟ 12 cm = х

thєrєfσrє , Hєíght σf tríαnglє ís 12 cm.

Jack buys a pool with 400 gallons of water, and it take 8 hours to fill. How many gallons were poured per hour?

Answers

Answer:

50 gallons per hour

Step-by-step explanation:

(400 gallons) / (8 hours) = 50 gallons per hour

Answer is: 50 gal

400/8/4

3/1/2+1/5/6÷1/3/5
hello good afternoon can u please solve this question​

Answers

Answer:

1/2

Step-by-step explanation:

See the steps below:)

The length of a rectangle is six times its width. If the perimeter of the rectangle is 126 in, find its length and width.​

Answers

Answer:

Length = 54 inches and width = 9 inches.

Step-by-step explanation:

Let the width be x in , then the length is 6x in.

So 2*x + 2*6x  126

14x = 126

x = 9 in.

So L = 6*9 = 54 in, and W = 9 in.

Step-by-step explanation:

Perimeter = 2l + 2w

but;

Perimeter = 126

lenght = 6w ( let the width be the variable w)

126 = 2(6w) + 2(w)

126 = 12w + 2w

126 = 14w

126/14 =w

w = 9

Therefore width is 9

and length = 6× 9 = 54

Find the area of the figure. with 4in 8in 2in 10in

Answers

Answer:

24 in total

Step-by-step explanation:

The volume of a cube with sides 3xy^2

Answers

Answer:

27(x^3)(y^6)

Step-by-step explanation:

the steps are in the pic above

Find value of x
How do I find the solution to this?

Answers

Adding all of these should equal to 180 from the way the angle is set up.

So the equation should be:

(3x + 2) + (2x + 5) + (2x - 9) = 180

You can remove parentheses as it doesn’t affect the equation since it is all addition.

Let’s first add the common variables together.

3x + 2x + 2x = 7x
2 + 5 + (-9) = -2

So now we should have:

7x - 2 = 180

Now add 2 to both sides.

7x = 182

Divide both sides by 7 to isolate x.

x = 26

So x is 26.

Answer:

3x+2+2x+5+2x-9=180(being linear pair)

7x-2=180

7x=180+2

x=182/7

x=26

Step-by-step explanation:

find the value of x.

Answers

Answer:

x = 5

Step-by-step explanation:

According to triangle angle bisector theorem, the ray divides the opposites side of the triangle into segments that are proportional to the other two sides.

So,

      [tex]\frac{x-1}{x-2} = \frac{12}{9}\\\\\frac{x-1}{x-2} = \frac{4}{3}\\\\3(x-1) = 4(x-2)\\\\3x - 3 = 4x - 8\\\\4x - 3x = -3 +8 \\\\x = 5[/tex]

I need help with this. If the video speed is 0.25 and the actual duration of the video is 2 hours and 10 minutes. How long would it take for him to finish watching the video?

Answers

Answer:

8 hours, and 40 minutes. Each time it goes down by .25 it goes up 2 hours and 10 minutes.

Take the common logarithm of both sides of
the equation. Use the power law to bring
the exponent (2x+1) down as a factor.
5(2x+1) = 8

Answers

Step 1: Take the common logarithm of both sides of the equation. Use the power property to bring the exponent, (2x+1), down as a factor.

Step 2: Solve the equation from step 1 for x. Round your final answer to the nearest hundreth.

(2x+1)*log(5) = log(8)

2x+1 = log(8)/log(5) = ~ 1.29203

2x = 0.29203

Please help!!! Trigonometry is so complicated to me

Answers

Answer:

x = 4

Step-by-step explanation:

Given that sin(13x) = cos(9x+2)

Since sintheta  = cos(90 - theta)

hence sin (13x) = cos (90 -13x)

Substitute into the original equation

cos (90 -13x) = cos(9x+2)

90-13x = 9x+2

-13x - 9x = 2 - 90

-22x = -88

x = 88/22

x = 4

Hence the value of x is 4

Which set of numbers represents solutions of the inequality m>20?

Answers

Answer:

{21, 22, 23, 24}

Step-by-step explanation:

m>20 means that m is greater or more than 20, therefore 21, 22, 23, and 24 are all greater than 20 so that is the answer.

Answer:

i think so.....

20,21,22,23

Answer for brainlest!!!!

Answers

Answer:

Step-by-step explanation:

angle 2 and angle 7 are alternate exterior angles.so they are always equal.

angle 2=angle 7

4. Function h describes the height of a ball, in inches, after n bounces and is defined by
the equation h(n) = 120 * (4/5)^n

Could h(n) be 150? Explain how you

Answers

Answer:

NO

Step-by-step explanation:

(4/5)^n will always be ≤ 1  for any positve n

The equation h ( n ) = 150 is false

No , the height of the ball cannot be 150 inches

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

h ( n ) = 120 x ( 4/5 )ⁿ

Now , substitute the value of h ( n ) = 150 , we get

150 = 120 ( 4/5 )ⁿ

Divide by 120 on both sides of the equation , we get

150 / 120 = ( 4/5 )ⁿ

On simplifying the equation , we get

5/4 = ( 4/5 )ⁿ

The equation is not true because we have a exponential decay function here. This height of the ball decreases with each bounce.

At bounce 0 the height of the ball is 120 inches, and then continuously decreases with a common factor of 4/5

Therefore , the value of h ( n ) can never be 150

Hence , the equation h ( n ) = 150 is false

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ2

According to the preamble to the constitution what is one purpose of government

Answers

Answer:

The Preamble states the six purposes of government to form a more perfect union; establish jusice; insure domestic tranquility;provide for the common defense; promote the general wefare; secure the blessings of liberty now and the future

Answer:

32 I just know it the answer

I need the anwer fast pls HELP

Answers

The median is the middle number in a sorted, ascending or descending, list of numbers.

0, 0, 1, 1, 1.5, 1.5, 1.5, 1.5, 2, 2, 2, 2, 2.5, 2.5, 3, 3, 3, 3, 3, 3.5, 3.5, 4, 4, 4, 4.5,

Therefore, the median would be 2.5 hours.

What is the area of this trapezoid?

A trapezoid with short base 2 millimeters, long base 3 millimeters, and height 8 millimeters.
A. 8 mm2
B. 16 mm2
C. 20 mm2
D. 40 mm2What is the area of this trapezoid?

A trapezoid with short base 2 millimeters, long base 3 millimeters, and height 8 millimeters.
A. 8 mm2
B. 16 mm2
C. 20 mm2
D. 40 mm2

Answers

Answer:

20mm2

Step-by-step explanation:

3+2=5

5divided by 2 = 2.5

2.5 times 8 = 20

Answer:

C. 20 mm²

Step-by-step explanation:

Formula for trapezoid =       [tex]\frac{base1 + base 2}{2}*height[/tex]

So 1/2(2+3)*8

1/2(5) * 8

2.5 * 8 = 20

Units area in mm²

20 mm²

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

The mean number of rushing yards for one NFL team was less than 105 yards per game. If a hypothesis test is performed, how should you interpret a decision that rejects the null hypothesis

Answers

Answer:

Null hypothesis rejected means that there is significant evidence to conclude that the team's mean rushing yards per game is less than 105 yards.

Step-by-step explanation:

The mean number of rushing yards for one NFL team was less than 105 yards per game.

At the null hypothesis, we test if the mean number of rushing yards for the team was the league's mean, which is close to 105 yards per game, that is:

[tex]H_0: \mu = 105[/tex].

At the alternate hypothesis, we test if there is significant evident to conclude that this team average is less than 105 yards per game, that is:

[tex]H_1: \mu < 105[/tex]

How should you interpret a decision that rejects the null hypothesis?

Null hypothesis rejected means that there is significant evidence to conclude that the team's mean rushing yards per game is less than 105 yards.

find the vertex of y= x^2 + 6x-55

Answers

Answer: ( − 3 , − 64 )

Step-by-step explanation:

knowledge!

We can use the formula, density = mass over volume, to find the density of a substance. A square metal plate has a density of 10.2 grams per cubic cm, and mass of 21.93 grams. Calculate the volume of the plate.​

Answers

Answer:

2.15cm^3

Step-by-step explanation:

V = Mass / Density

21.93g / 10.2g/cm^3

2.15cm^3

yard
April buys 14 yards of ribbon to make bows for her dance team. If she uses 11
of ribbon for the bows, how much ribbon, in yards, does April have now?
You may use the fraction model to help you.

Answers

Answer:

31

Step-by-step explanation:

Find the area of the circle
Pls help quick

Answers

Answer:

153.86.

Step-by-step explanation:

Formula for area of a circle: A= Pi R (R is radius) squared. First fill in the numbers: 3.14x7^2 Then Solve for the squared: 7^2=49, then finally multiply 49x3.14 which gets you to 153.86.

what is the estamate of 25x1/2

Answers

Answer: 12.5

Step-by-step explanation:

1/2 of 25 is 12.5 since when added together they create 25

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