Clinical literature reports that the duration of a typical cold is roughly 18 days. Researchers wanted to know if people tend to underestimate the duration of a typical cold, on average. They surveyed a random sample of 352 healthy adults in Georgia and asked them how long they think that a typical cold lasts. The researchers reported a 95% confidence interval of 6.9 to 8.2 days for the mean expected duration of typical cold.
Which of the following is the correct interpretation for this confidence interval?
a. We are 95% confident that the sample mean duration is between 6.9 and 8.2 days.
b. We are 95% confident that the population mean duration is between 6.9 and 8.2 days.
c.There is a 95% chance that the mean duration of another random sample from this population would be between 6.9 and 8.2 days.
d. There is a 95% chance that a randomly selected individual from this population would give a response between 6.9 and 8.2 days.

Answer:

2:6:7=12:36:42

Step-by-step explanation:

hope its right  :)

Answer: I believe the answer is B

Step-by-step explanation: Hope it helps :)

Answer:

Top Left: 40/100 = 2/5 = 40%

Top Right: 52/100 = 13/25 = 52%

Bottom Left: 22/100 = 11/50 = 22%

Bottom Right: 9/100 = 9/100 = 9%

Step-by-step explanation:

Answer:

As viewed on the deck, the lighthouse is 50-6 = 44 m above. First we need to compute the two distances from the captain and the lighthouse. For point1:

d1 = 44 / tan(60) = 25.403 m

For point2:

d2 = 44 / tan(30) = 76.210 m

The distance traveled by the ship in five minutes is 50.807 m or 0.050807 km. Five minutes is equivalent to 1/12 hours.

The speed is then equal to 0.050807/(1/12) kph = 0.61 kph.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

Step-by-step explanation:

Answer:

x = 111°

Step-by-step explanation:

The interior sum of a triangle is 180°

x + 37 + 32 = 180

x + 69 = 180

x = 111

good luck, i hope this helps :)

Answer:

551 ft

Step-by-step explanation:

i pretty sure thats it sorry if its wrong

Answer:

We need to put this equation into either form of a line, pererably, slope intercept form!

Step-by-step explanation:

To do this, out goal is to get y alone.

1. We subtract x on both sides.

2 We divide 6 on both sides.

3. Our answer is y= -x/6 ( negative x divided by 6)

4. The y-intecept value is when x is equal to zero, so plug in 0 for x and solve for y.

5. The y intercept is (0,0)

6. From (0,0) point, you go down -1 and move 1 to the right each time!

The graph will be a line with a slope of -1/6 that passes through the points (0,0), (6,-1), and (-6,1).

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

To graph this equation, start by rearranging it to solve for y.

y = -x/6

Next, plot a few points to fill in the graph.

when x is 0,

y is 0.

When x is 6,

y is -1, and

when x is -6, y is 1.

Finally, connect the plotted points with a straight line.

The final graph will be a line with a slope of -1/6 that passes through the points (0,0), (6,-1), and (-6,1).

Hence, graph will be a line with a slope of -1/6 that passes through the points (0,0), (6,-1), and (-6,1).

To learn more on Graph click:

https://brainly.com/question/17267403

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Answer:

G

Step-by-step explanation:

Answer:

now they can have brain

Step-by-step explanation:

Answer:

f(-5) =5

Step-by-step explanation:

We want to find the output value when x = -5

Looking at the graph when x = -5 the graph is at 5

f(-5) =5

Volume is a 3d version of area

Answer:

Mathematical symbols used for different calculations?

Answer:The answer is the 2 one

Step-by-step explanation:

Answer: 43.5 cm²

Step-by-step explanation:

Area for a trapezium is: a + b/2 X h

13 + 16/2 X 3 = 43.5 cm²

Answer:

43.5

Step-by-step explanation:

[tex]a=\frac{base 1+base2}{2} h[/tex]

[tex]a=\frac{13+16}{2} *3\\a=\frac{29}{2} *3[/tex]

[tex]a=\frac{87}{2\\} \\a=43.5[/tex]

Answer:

i have no idea how to do this but good luck on your mathematics olympics !!

Step-by-step explanation:

Answer:

[tex]P(Sum = 9) = \frac{1}{9}[/tex]

Step-by-step explanation:

Given

Outcomes of rolling two dice

Required

P(Sum = 9)

From the given outcomes, we have:

[tex]n(S) = 36[/tex] -- the sample size

[tex]Sum = 9:=\{(3,6),(4,5),(5,4),(6,3)\}[/tex]

So.

[tex]n(Sum = 9) = 4[/tex]

The probability is:

[tex]P(Sum = 9) = \frac{n(Sum = 9)}{n(S)}[/tex]

[tex]P(Sum = 9) = \frac{4}{36}[/tex]

Simplify

[tex]P(Sum = 9) = \frac{1}{9}[/tex]

it is 15 if you add and then divid

To cube a fraction, we simply cube both the numerator and the denominator.

So we have 1^3/5^3 which is 1/125.

Answer:

Step-by-step explanation:

By applying sine rule in the given triangle,

cos(25°) = [tex]\frac{\text{AC}}{AB}[/tex]

cos(25°) = [tex]\frac{b}{400}[/tex]

b = 400[cos(25°)]

b = 362.52

b = 363 ft

By applying sine rule in the given triangle,

sin(25°) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

sin(25°) = [tex]\frac{a}{400}[/tex]

a = 400[sin(25°)]

a = 169.05

a = 169 ft

m∠A + m∠B + m∠C = 180°

25° + m∠B + 90° = 180°

m∠B = 180° - 115°

m∠B = 65°

Step-by-step explanation:

to find a common denominator, you have to find a number that "works" with every other number.

for example, say you have

2/4 and 8/12

First you need to find the common factor between 4 and 12, so list all your fours

4, 8, 12, 16, 20

Now list all your twelves

12, 24, 36, 48, 60

to find the common factor you look at both your list of numbers and find one that's the same, sometimes it takes a long list of numbers to find the common factor, but you will run into one.

So by looking at our list we see that 4 and 12 share the common factor of 12. but since 8/12 already has a denominator of 12, we are going to leave it alone.

now think about what you would multiply 4 by, to get to 12. The answer is

4 x 3 = 12

to make the numerator correct, you multiply it by the same number you did 4, so since your faction is 2/4 you should do 2 x 3 = 6

now you have your answer,

2/4 and 8/12 turns into

6/12 and 8/12

and that's how you find it, let me know if you have questions :)

Answer:

multiply each term in one polynomial by each term in the other polynomial.

add those answers together, and simplify if needed.

Step-by-step explanation:

Use FOIL !

1. multiply each term in one polynomial by each term in the other polynomial

2. add those answers together, and simplify if needed

Multiply polynomials the same way you multiply monomials and bionomials. You can also use symbolab to check if your answer is correct

Good luck! Don't be afraid to comment something below this if you have another specific question.

Answer:

10x+8

Step-by-step explanation:

Answer:

10x + 8 is the answer

Step-by-step explanation:

To simplify the equation we must use the Distributive Property meaning that

we must distribute 2 to each term

                                                     5x(2) + 4(2)

                                                        10x + 8

            There You Go, Have a Wonderful Day, And Hope This Helps

Answer:

tHIS IS EASY, JUST LOOK AT THE NUMBER OF TIMES IT HAPPENS, THAT IS UR ANSWER FOR EXPERIMENTAL PROBABILITY

Step-by-step explanation:

Answer:

48

Step-by-step explanation:

30 is 5/8 of ?

30x8=240

240/5=48

(18 Math teachers and 30 non-Math teachers)

Answer:I don't really know

Step-by-step explanation: I kind of just come on here to stump my parents.

Answer:

16x⁶y⁸|y³z|.........

Answer:

B

Step-by-step explanation:

EDGE

Answer:

77[tex]\frac{3}{400}[/tex]

Step-by-step explanation:

Answer:

30803/400

Step-by-step explanation:

77.0075 = 770075/10000

= 154015/2000

= 30803/400

Answer:

I believe its the last answer.

Step-by-step explanation: