Making Inferences from Multiple Samples

Solve each problem.

1 A biologist is studying diseases in chimpanzees. He takes three random samples of the same size

from a troop of 150 chimpanzees. One sample indicates that 3% of the chimpanzees are hairless,

another sample indicates that 5% are hairless, and a third sample indicates that 4% are hairless.

How many hairless chimpanzees should the biologist expect to find in the troop?

I don't know what you think about it

Answer:

The first one is correct

Step-by-step explanation:

Answer:

143 Gallons

Step-by-step explanation:

miles/gallon per 26 miles= amount of gallons.

3718/26= 143 gallons of gas.

Answer:

X = 2

Step-by-step explanation:

7 X 2 = 14

HOPE THIS HELPS!

Answer/Step-by-step explanation:

The exponential function modeling the number of lions ⇒  the years passed since 2010 is appointed as

[tex]f(x)=2^1^+^2^x[/tex]

Well, If you have an question like what is exponential function?

Let's me tell you:

exponential functions which are expressed as some constant raised to the power of the argument called exponential function.

You might be asking how to find which function can model the given question..

[tex]\mathrm{Since \;2012 - 2010 = 2 \;and\; the\; number \;of\;lions = 32 =2^5}[/tex]

[tex]\mathrm{and \;2013 -2010 = 3\; and\; the\; number \;of\; lions\; =128 = 2^7}[/tex]

Hence, there is increment of 2 exponent as 1 year was changed.

Now, we have:

[tex]f(x)=2^2^x^+^a[/tex]

[tex]\mathrm{Thus,\; it\; increases \;every \;year \;by\; a \;ratio \;of \;2^(^2^)}[/tex]

[tex]\mathrm{Thus, \;in \;2011, \;it \;was \;2^(^5^) - 2^(^2^) = 2^(^3^)\; lions}[/tex]

[tex]\mathrm{In\; 2010, it\; was 2^(^3^) - 2^(^2^) = 2}[/tex]

Since Lions were introduced in the park in 2010, using f(x), it means;

[tex]x = 0, f(x) = 2[/tex]

[tex]x = 1, f(x) = 2^(^3^)[/tex]

[tex]x = 2, f(x) = 2^(^5^)[/tex]

[tex]x = 3, f(x) = 2^(^7^)[/tex]

Let's use the generic formula: y = ab^(x)

At x = 0 and y = 2, we have:

[tex]2 = a * b^(^0^)[/tex]

Thus,a = 2

At x = 1, y = 2^3

b = 8/2

b = 4

So the exponential equation is;

[tex]y = 2(4^(^x^))[/tex]

~Learn with Lenvy~

The area for both polygons are:

Green polygon: 8

Red polyogon: 9

hope this helps

Answer: Train A weighs 418 tons and Train B weighs 61 tons

Step-by-step explanation:

Let a represent the weight of Train A, and let b represent the weight of Train B.

We can set up a system of equations.

a + b = 479

a - b = 357 ( as we are given that a is heavier than b )

We can add the two equations:

a + b + a - b = 479 + 357

Combine like terms (which cancels out the b):

2a = 836

Divide both sides by 2:

a = 418

We can plug this back into the first equation:

418 + b = 479

Subtract 418 from both sides:

b = 61

Answer: u can use a website called mixed numbers fractions it’s easy <3

1. 11/2

1. 11/22. - 1/2

1. 11/22. - 1/23. - 47/20

Hope this helps!

Answer:

1. Addition

sum

2. Subtraction

difference

deduct

3. Multiplication

product

of (I'm not sure about this one, though)

4. Division

divided by

quotient

5. Equals

is

Step-by-step explanation:

The graph of the function y = sin (0.25x) is attached.

       (+) for addition (−) for subtraction (×) for multiplication (÷) for division.

Given are the mathematical operations.

We can match the operations as -

Therefore, the mathematical operations are matched with their equivalent names.

To solve more questions on mathematical operations, visit the link below -

https://brainly.com/question/20628271

#SPJ2

Answer:

[tex]\huge\boxed{\sf 8 + 4\sqrt{2} \ cm }[/tex]

Step-by-step explanation:

[tex]\theta = 45 \textdegree[/tex]

opposite = 4 cm

Using tan first to find the adjacent side:

[tex]\displaystyle tan \theta = \frac{opposite}{adjacent} \\\\tan \ 45 = \frac{4}{adjacent}\\\\1 = \frac{4}{adjacent} \\\\Multiply \ 'adjacent' \ to \ both \ sides\\\\adjacent = 4 \ cm[/tex]

Finding Hypotenuse now by using Pythagorean theorem:

[tex](Hyp)^2 = (base)^2 + (perp)^2[/tex]

where base = 4, hyp = 4

(Hyp)² = (4)² + (4)²

(Hyp)² = 16 + 16

(Hyp)² = 32

Take sqrt on both sides

[tex]Hyp = 4\sqrt{2}[/tex] cm

Exact perimeter of triangle:

= base + perpendicular + hypotenuse

= 4 + 4 + 4√2

= [tex]8 + 4\sqrt{2}[/tex] cm

[tex]\rule[225]{225}{2}[/tex]

Answer: D

Step-by-step explanation:

Total tickets sold is $779

Calculate the options to get the right answer.

Option D is correct at

81 students at $4 = 324

65 adults at $7= 455

Total is $ 779

Answer:

4/5

Step-by-step explanation:

this will not need the bot

Answer:

6:41

Step-by-step explanation:

We know that the number of students going on the field trip is 6.

To find the total number of students, add the number of students going on the trip and the number of students staying at the school: 6 + 35 = 41

So the ratio of the number of students going on the field trip to the total number of students is 6:41

Answer:

$6.84

Step-by-step explanation:

18.25/1.2 = x/0.45

Please include picture. thank you

Answer:

∡CFE and ∡BFD, ∡AFB and ∡BFD

Step-by-step explanation:

It is because supplementary angle is straight lines which add ups to 180°

Therefore, ∡CFE and ∡BFD, ∡AFB and ∡BFD are supplementary angles

Answer:

slope = 3

Step-by-step explanation:

calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (1, 3 ) and (x₂, y₂ ) = (9, 27 )

m = [tex]\frac{27-3}{9-1}[/tex] = [tex]\frac{24}{8}[/tex] = 3

[tex]\mathbb{FINAL\:ANSWER:}[/tex]

[tex]\huge\boxed{\sf\:Slope=3}}[/tex]

[tex]\mathbb{SOLUTION\:WITH\:STEPS:}[/tex]

Hi! Hope you are having a nice day!

We are given 2 points that the line passes through, so we can use the slope formula and find the slope.

Slope Formula:

[tex]\displaystyle\frac{y2-y1}{x2-x1}[/tex]

[tex]\displaystyle\frac{27-3}{9-1}[/tex]

[tex]\displaystyle\frac{24}{8}[/tex]

The fraction can be reduced:

[tex]\displaystyle\frac{3}{1}[/tex]

which is the same as

[tex]3[/tex]

Hope you could understand everything.

#CarryOnLearning

Step-by-step explanation:

whole numbers are the numbers Start from 0.

century means hundred

16-8=8

hexagon has six sides

91÷7=13

Answer:

A

Step-by-step explanation:

Explanation:

Can we rotate the figure some angle smaller than 360 degrees and have it match up with its original image? The answer to that is "no". Any such rotation will change the image to something else. Therefore, this figure does not have any point symmetry (aka rotational symmetry).

Can we reflect one half of the figure over some line to get the other half? The answer here is also "no". The diagram has no reflectional symmetry either.

Plane symmetry is ruled out because that only applies to 3D settings.

Answer:

88$

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

we can use the pythagorean theorem so (15)²= (12)² + (x)²--> (15)²-(12)²=x²

take the square root of both sides ans x=9

note! this is a special type of triangle called a 3-4-5 special right triangle because all the sides when divided by a factor of 3 will simplify down to the sides 3-4-5 (only true when the hypotheneuse is the 5 because it's the longest side of a triangle)

Answer:

area of circle = πr^2

just substitute 20 for r:

π(20)^2

= 400π

If the question ask for an answer in terms of pi, this is your answer. If it doesn't, simplify it further to get:

= 1256.637061 (m/cm)^2

You can round this however you like, but I would say either 3 significant figures, either 1 or 2 decimal places.

Answer:

68,443,507,502

Step-by-step explanation:

Answer:

68,443,507,502

Step-by-step explanation:

Hope this helps

Answer:

9 sq.un.

Step-by-step explanation:

The polygon it is surrounded by an imaginary square of 4 X 4 units per side

To their area we subtract the areas of the imaginary triangles in white.

Results the area of the shaded polygon:

[tex]A=4^{2} -\frac{(2)(3)}{2} -2(\frac{(1)(3)}{2} )-\frac{(1)(2)}{2} =16-3-3-1=16-7=9sq.un.[/tex]

Hope this helps

Answer:

9 sq. un

Step-by-step explanation: