During a flu epidemic, 35% of the school's students have the flu. Of those with the flu, 90% have high
temperatures. However, high temperatures are possible for people who do not have the flu. It is estimated that
12% of those without the flu have high temperatures.
If a student has a high temperature, what is the probability that the student has the flu?

Answers

Answer 1

Answer: 0.8015

Step-by-step explanation:

Let F= event that a person has flu

H= event that person has a high temperature.

As per given,

P(F) =0.35

Then P(F')= 1- 0.35= 0.65               [Total probability= 1]

P(H | F) = 0.90

P(H|F') = 0.12

By Bayes theorem, we have

[tex]P(F|H)=\dfrac{P(F)\timesP(H|F)}{P(F)\timesP(H|F)+P(F')\timesP(H|F')}\\\\=\dfrac{0.35\times0.90}{0.35\times0.90+0.65\times0.12}\\\\=\dfrac{0.315}{0.315+0.078}\approx0.8015[/tex]

Required probability = 0.8015


Related Questions

v = u + at

Make u the subject of the formula.

Plz, Write down the answer and don’t put spaces.

Answers

Answer:

u=v-at

Step-by-step explanation:

When making something the subject of the formula, we need to get that thing on 1 side of the equation all by itself. To do this, we need to rearrange.

Because I can see that the side with my "u" has a "+at", I need to get the "+at" onto the other side of the "=", I can do this by subtracting it on both sides (because that - is the inverse of +). So I now have v-at=u. Which is the final answer.

Note: it doesn't matter which side U is on, as long as it is alone (so this equation can also be written as u=v-at.

 what is the geometric sequence and the 8th term and the 10th term

Answers

Answer:

The geometric sequence is decreasing by 0.5 * each term

common ratio = 0.5

an equation for this exact sequence would be

50(0.5)^x-1

Step-by-step explanation:

To find the common ratio for a geometric sequence we can divide the previous term value by the next term value

so 50 / 25 = 0.5

and to check we can divide

25 / 12.5 = 0.5

So our common ratio is 0.5

Step-by-step explanation:

Given sequence:

50, 25, 12.5, ...

The first term is 50 and the common ratio is:

r = 12.5/25 = 25/50 = 1/2

The equation:

tₙ = t₁rⁿ⁻¹tₙ = 50(1/2)ⁿ⁻¹

Find the 8th and 10th terms:

t₈ = 50(1/2)⁷ = 0.390625t₁₀ = 50(1/2)⁹ = 0.09765625

What 2 numbers have a total of 46 and a diffrence of 12​

Answers

Answer:

29 and 17

Step-by-step explanation:

Sum: 29 + 17 = 46

Difference: 29 - 17 = 12

Answer:

The answer is 17 and 29.

17+29=46.

29-17=12

Suppose you want to work out by combining periods of jogging at 5
mph and walking at 3 mph. You intend to go a total distance of at least 3
miles in at most 45 minutes, and you want the distance jogged to be at
most four times the distance walked.
Determine the distances walked and jogged, to the nearest tenth of a
mile, that would result in
the greatest number of miles jogged.
• the greatest number of miles walked.
Explain in detail how you determined your answers. Include a graph in
your explanation

Answers

Answer:

5+3+3+45=?

Step-by-step explanation:

#CarryOnLearning

lan walked 5 blocks home from school.His friend Kim walked x blocks farther.Write an expression for how far Kim
walked

Answers

Answer: x + 5 or 5 + x

I need the equation answer pls

Answers

Answer:

maybe you.. didn't give us a picture

Answer:

we need a photo please first

Step-by-step explanation:

For the Gross Pay of $432.00, what is (a) the Social Security Tax, (b) Medicare Tax Withheld, and (c) Total Deduction.

For this problem use the Social Security tax rate of 6.2% and Medicare tax rate of 1.45% to determine each tax and the total deduction.

Answers

It’s b took the test

find the value of a square + b square when a+b = 6 a_b = 4

Answers

Answer:

a+b=6

a-b =4

______subtract

(a-a)+(b-(-b))=6-4

0+2b = 2

b= 1

put the value of b at any equation

a+1 =6

then a=6-1=5

a square+b square= 25+1= 26

Martha Stewart has developed a new perfume. She decides to test its side effects by spraying the perfume in 31 randomly chosen houses. She records the level of antigens that create an allergic response. If the antigen level is high enough, the person will go into anaphylactic shock. The mean of her sample is a lot bigger than the median, but Martha hopes that a 90% confidence interval will contain zero. Her confidence interval is (0.116, 1.884). Disappointed, she offers you $144 to find an acceptable, realistic way to change the confidence interval to contain zero. What could you say to earn the money

Answers

The acceptable and realistic ways to to change the confidence interval to contain zero are;

Martha should decrease x-bar by providing medicine to treat shock to the perfume users.Decrease sample size than 30Increase the confidence level, till the interval contains zero

Reasons:

The confidence interval is given by the following formula;

[tex]CI=\bar{x}\pm t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex]

When the mean, [tex]\overline x[/tex], is positive and large, both values, [tex]\bar{x}+ t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], and [tex]\bar{x} -t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], will be positive.

Therefore, Martha has to either intervene to reduce the mean also known as x-bar

Increasing the confidence level will increase the allowable error such that [tex]\bar{x} < t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], and the interval will contain zero

Therefore;

Martha should decrease x-bar, [tex]\overline x[/tex], by providing medicine to treat shock to the perfume usersUse a much smaller sample size, n, such that [tex]t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}} > \bar{x}[/tex]

Increase the confidence level to 95% or 99%, thereby increasing the error bound

Learn more here:

https://brainly.com/question/13034570

A rectangular water tank has the following dimension:
Length = 3 feet, Width = 2 feet, Height = 2.5 feet. Find the amount of water it can hold in cubic centimeter.

Answers

Answer:

424,752.7 cm³

Step-by-step explanation:

Since you need to convert from English units to Metric units, you can do that first.

Convert each measurement to centimeters instead of feet since your final answer is in cubic centimeters.

1 foot = 30.48 centimeters

Length = 3 ft    30.48cm

              -----  x ------------    =  91.44 cm

                1            1 ft

Width =  2 ft       30.48cm

            -------  x  -------------  =   60.96 cm

                1             1 ft

Height = 2.5 ft      30.48cm

              --------  x  ------------  =  76.2 cm

                  1            1 ft

The volume is equal to L x W x H

91.44cm x 60.96cm x 76.2cm = 424,752.7 cubic centimeters

I need help with this problem, please do not try to guess or anything like that.

Answers

Answer:

h(x) = 9.5x-110

Step-by-step explanation:

h(x) = 9.5x-110, you had the right idea, just got to remember that when a negative number goes down its addition.

-If you thought that I was helpful, go ahead and give me the brainliest answer!

Use this table to help answer the question. What would be the best description of the johns times rounded to quarter hours (15 minutes)


A) 8:45am - 5:00pm

B) 8:45am - 5:15pm

C) 8:30am - 5:15pm

D) 8:30am - 5:00pm

Answers

B) 8:45am-5:15pm

Hope this helps!

Evaluate.
0
-1.02 · (-4)
Enter your answer in the box.

Answers

Answer:

4.08

Step-by-step explanation:

the negatives cancel each other out therefore 1.02*4= 4.08

When we Evaluate. [tex]0 / -1 * 0^2 * -4[/tex] the values is 0. To evaluate the expression, follow the order of operations (PEMDAS/BODMAS):

P - Parentheses/Brackets

E - Exponents/Orders

MD - Multiplication and Division (from left to right)

AS - Addition and Subtraction (from left to right)

The expression is: [tex]0 / -1 * 0^2 * -4[/tex]

Step 1: Exponents/Orders

0^2 = 0 (Any number raised to the power of 0 is always 0).

Step 2: Division

0 / -1 = 0 (Any number divided by 0 is undefined, but in this case, it would be 0).

Step 3: Multiplication : 0 * 0 * -4 = 0

So, the final answer is 0.

To know more about operations :

https://brainly.com/question/30581198

#SPJ3

Correct Question is:

Evaluate. 0 / -1 * 0^2 * -4

Does anyone know this?

Answers

Step-by-step explanation:

1/2-5/8=6/8=3/4 or 0.75

George bought 9 apples that cost 50 cents each. He paid with a five dollar bill. How much change did George receive?

Answers

Step-by-step explanation:

pls follow me this is my new.id

Answer:

He has 9 apples so we add .50 cents 9 times.

If we count this money-wise we would get 4.50, so if he paid with a $5 bill he would recieve 50 cents

Step-by-step explanation:

The width of the rectangle is 0.4 meters less than the length. The perimeter of a rectangle is 53.2 meters. Find the dimensions of the rectangle (in meters). length m width m

Answers

Answer:...

Step-by-step explanation:...................

PLEASE ANSWER QUICK
Which relation is represented by the arrow diagram?

Answers

Answer:

A is the correct answer

Step-by-step explanation:

I don't wanna explain UvU I'm too lazy and tired if you want me to explain then I will

Help QUICK!!!!!!!!

At a pet store they are selling rabbits for $16.75 each. You have a coupon for $5.00 your total purphase. If you buy 3 rabbits, how much would your total be?

A. $35.25
B. $40.25
C. $45.25
D. $48.25

Answers

Answer:

45.25

Step-by-step explanation:

Jean is planning to take a foreign language class. To research how satisfied other students are with their foreign language classes, she decides to take a sample of 50 such students. The university offers classes in five languages: Spanish, German, Russian, French, and Japanese. She will select a random sample of 10 students from each language class. Which term best describes the sampling technique Jean is using

Answers

Answer:

probability I think if I am ✅ can I get brainliyist

A camp counsellor is fencing off a rectangular play area for the younger campers.

a) if she has 16m if fencing, how should she arrange the fencing to provide the greatest possible area?

b) How should she alter her diagram if she can use the dining hall as one of her boundaries?​

Answers

Answer:

Step-by-step explanation:

a) if she had 16 m of fencing

all possible outcomes

4 by 4

2 by 6  

1 by 7

the greatest should be 4 by4

b) she could alter it to 2 by 6

Hey what is 9x238
any help?

Answers

Answer:

2142

Step-by-step explanation:

2,142 would be your answer when you multiply these numbers. I hope this helps :)

mrs. jenningswants to take her kids on a field trip to the musem. the bus cost a total 100 and the meusem will charge 2 per student. what is the maximum number od students that mrs. jennings cantake to the meusem without exceeding her budget of 150

Answers

On a budget of $150, Mrs. Jennings will only be able to take 25 kids to the museum.

Mrs. Jennings has $150 in total and has to spend it on the bus and getting the kids into the museum.

After she spends on the bus, she will be left with:

= Budget - Cost of bus

= 150 - 100

= $50

She then spends $2 per kid. The total number of kids she can bring into the museum is:

= Amount remaining/ Cost per kid

= 50 / 2

= 25 kids

In conclusion, she can only take 25 kids.

Find out more at https://brainly.com/question/139108.

8-pack jump ropes cost $10.48 what is the price of 1-pack of jump rope?

Answers

Answer:

1.31$

Step-by-step explanation:

Because I’m a teacher

The price of a 1-pack of jump rope is $1.31 10.48/8=1.31

How many average points per game did Denver score?

Answers

So Denver scored 3/4 as many as Dallas so:
3/4 x 26 3/5
If we make 26 3/5 an improper fraction it becomes
133/5
133/5 x 3/4 =
(133 x 3)/(5x4)=
399/20 average points
Which as a mixed fraction is:
19 19/20
Can I get brainliest answer.

The square root of 75 is closet to wich is not following

Answers

The answer is b. 9 .

Answer:

B.) 9

Step-by-step explanation:

The square root of 75 is 8.660254038 (or 8.6). The 6 tells us that we need to round up to a whole number which makes it the closest to 9

What is the slope of the line shown in the graph? Express your answer as an improper fraction or as an integer

Answers

Answer:

y= 3/2x + 1

Step-by-step explanation:

Rise over run to find slope: Rise: 3 Run:2

Y-intercept is at +1

Step-by-step explanation:

slope is the same as gradient,m

m= y2- y1

x2 - x1

(2,4) (0,1)

x2,y2 x1,y1

m= 4 - 1

2 - 0

m= 3

2

Does anyone know what the numbers on the left mean

Answers

Step-by-step explanation:

yes I know if you follow me I will give you your answer

need help with study guide plz!

Answers

Answer:

x = 3/5

Step-by-step explanation:

5th root of Y is notated in exponential notation as Y^(1/5), which is Y to the one fifth (1/5) power.

So, the 5th root of 19^3 is (19^3)^(1/5) = 19^(3 * 1/5) = 19^(3/5), since (A^a)^b = A^(a*b).

Write the equation of the line graphed below.

Answers

Answer: y=-7

Step-by-step explanation: on why axis and is pallet yo x axis

Answer:

y = -7

Step-by-step explanation:

Find the measure of the missing angles. ​

Answers



Add the two smallest angles, which are the same, together and you get 140 degrees. The entire circle is 360 degrees. 360-140=220
Then you have two angles left so you divide 220 by 2
220/2=110 so
C= 110
B= 70
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