Manatees are an endangered species of herbivorous, aquatic mammals found primarily in the rivers and estuaries of Florida. As part of its conservation efforts, the Florida Fish and Wildlife Commission records the cause of death for every recovered manatee carcass in its waters. Of the 392392 recorded manatee deaths in 2012, 6868 were perinatal and 8181 were caused by collision with a watercraft. (a) What is the probability that the death of a randomly selected manatee was due to collision with a watercraft? (Enter your answer rounded to four decimal places.)

Answers

Answer 1

Answer:

Other question are " (b) What is the probability that the death was not due to collision with a watercraft? (Enter your answer rounded to four decimal places.) P(not collision) - (c) What is the probability that the cause of death was due to perinatal problems or collision with a watercraft? What is the

(c) What is the probability that the cause of death was due to perinatal problems or collision with a watercraft? What is the probability that it was due to some other cause? (Enter your answers rounded to four decimal places.) P(perinatal or collision) P(other cause) -"

a) P(collision) = Number of deaths caused by collision / Total number of deaths

P(collision) = 81/392

P(collision) = 0.2066

b) P(not collision) = 1 - P(collision)

P(not collision) = 1 - 0.2066

P(not collision) = 0.7934

c) P(perinatal or collision) = (68+81)/392

P(perinatal or collision) = 0.3801

P(other cause) = 1 - 0.3801

P(other cause) = 0.6199.


Related Questions

What is the slope of the line that passes through the points M(-3,5) and N (1,8)

Answers

Answer:

the answer is A. 3/4

Step-by-step explanation:

Try using Symbolab for future reference it works really well (it's what I use ALL the time)!

Select the smallest fraction from the following fractions.
2/4, 3/6, 1,3, 7/9

Answers

7/9 is the smallest fraction

Answer: 1/3

Step-by-step explanation:

2/4 and 3/6 can be simplified to 1/2.

1/3 is smaller than 1/2 because it have a larger denominator, but the same numerator.

Multiple 1/3 by 3/3 and you get 3/9, which is smaller than 7/9.  


Select all the pairs of equivalent expressions. Need answer ASAP!

Answers

Answers:

1. 2
2. 4
3. 5

Didn’t know how to write it out.

A bowling alley charges its customers an hourly rate to bowl plus shoe rental. The hourly rates are per lane.

A linear model of this situation contains the values (2, 41) and (3, 59.25), where x represents the number of hours bowled on one lane, and y represents the total cost for bowling.

What is the rate of change in this linear model?

Answers

Answer:  18.25

Step-by-step explanation:

Answer:

Step-by-step explanation:

dvj 2355

5 times a number is 6 less than the square of that number

Answers

Answer:

5x = x^2 - 6

Step-by-step explanation:

a number can be represented by x,

5 times a number can be represented as the product of 5 and x, 6 less than the square of that number tells us that this is equal to a number squared minus 6. is tells us that these two expressions are equal.

If you want a working number, just solve by completing the square once this is in standard form. This is then converted to vertex form.

x^2-5x-6 = (x-5/2)^2-49/4 = (x^2-5x+25/4) -49/4 = x^2-5x-6.

(x-5/2)^2-49/4=0

(x-5/2)^2=49/4

(x-5/2) = ±√49/4

(x-5/2) = ±7/2

x=5/2±7/2

x=(5±7)/2

x=12/2,-2/2

x=6,-1

Thus, the number can either be 6 or -1.

multiply fraction 7×2 1/2​

Answers

[tex]\frac{35}{2} \: or \: 17 \frac{1}{2} [/tex]

Step-by-step explanation:

[tex]7 \times 2 \frac{1}{2} [/tex]

Convert mixed number to fraction

[tex]2 \frac{1}{2} = \frac{5}{2} \\ \\ 7 \times \frac{5}{2} [/tex]

Simplify

[tex] \frac{7}{1} \times \frac{5}{2} = \frac{35}{2} [/tex]

Convert to mixed number

[tex]17 \frac{1}{2} [/tex]

The value of m varies inversely as the square of n. When n = 3 m = 6.
What is the positive value of n when m = 13.5?
(I already know C. is wrong)
A. 18
B. 2
C. 9 XXXX
D. 4

Answers

Answer:

B.]2

Step-by-step explanation:

The required positive value of n is 2. Hence, option B is correct.

Important information:

m varies inversely as the square of n.Whem n = 3, then m = 6.Inverse proportion:

It is given that m is inversely proportional to the square of n. So,

[tex]m\propto \dfrac{1}{n^2}[/tex]

[tex]m=\dfrac{k}{n^2}[/tex]           ...(i)

Where, k is the constant of proportionality.

Substitute m = 6 and n = 3 in the above equation.

[tex]6=\dfrac{k}{3^2}[/tex]

[tex]6=\dfrac{k}{9}[/tex]

[tex]6\times 9=k[/tex]

[tex]54=k[/tex]

Substitute this value in (i).

[tex]m=\dfrac{54}{n^2}[/tex]

Substitute m = 13.5 in the above equation.

[tex]13.5=\dfrac{54}{n^2}[/tex]

[tex]n^2=\dfrac{54}{13.5}[/tex]

[tex]n=\pm \sqrt{4}[/tex]

[tex]n=\pm 2[/tex]

Therefore, the required positive value of n is 2. Hence, option B is correct.

Find out more about 'Inverse proportion' here:

https://brainly.com/question/15179946

Use the Distributive Property to expand the expression -(u-v)

Answers

Answer:

(U+V) is the answer to the solution

Por qué estaría el cuervo parado en la rama de un árbol con un trozo de queso en el pico.

Answers

El cuervo está parado en una rama con un trozo de queso en el pico debido a que tenía la intención de reservarlo para otra ocasión. No obstante lo pierde por creer en el zorro.

¿Por qué estaría el cuervo parado en una rama de un árbol con un trozo de queso en el pico?

El cuervo estaría parado en una rama de un árbol con un trozo de queso en el pico debido a que le gustaba reservar comida para tener provisiones disponible para ocasiones futuras. No obstante, en la fábula se menciona que se encuentra con el zorro que tiene el proposito de quitarle el trozo de queso.

Para ello, el zorro comienza a adular al cuervo para que cante y este cae en la trampa, soltando el trozo de queso. Luego de esto, el zorro toma el trozo de queso y se va.

Nota: Esta pregunta está incompleta debido a que tiene información faltante. A continuación se menciona la información faltante.

Fábula: El cuervo y el zorro.

Aprenda más sobre fábulas en: https://brainly.com/question/12343277

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Which of the following quantities are inversely proportional? WILL GIVE BRAINLIEST AND 25 POINTS
a
The number of hours worked and the amount of money earned, assuming the worker is paid by the hour
b
The height of a rectangular fish tank and the area of its base, if the volume is constant
c
The amount of candy purchased for $25.50 and the price per pound
d
The time it takes to use a 5 lb bag of dry cat food and the number of cats, if each cat eats the same amount of food per same time interval.

Answers

Answer:

I believe the answer is D

Step-by-step explanation:

Inverse proportion occurs when one value increases and the other decreases

D is the answer because as each cat eats the same amount of dry cat food, there is less dry cat food in the bag; so this is why D best answers the question.

Hope this helps!

Answer:

a is false, B is true,

Step-by-step explanation:A is false because the more hours you work, the more money you get.

B is true because if the volume is constant, the bigger the length, the smaller the width, or vice versa.

Which of the following does not represent a function?

Answers

A function is a process or a relation that associates each element x of a set X, the domain of the function, to a single element y of another set Y (possibly the same set), the codomain of the function.

Simplify the equation given in the image

Answers

Answer:

b^20/a^12

Step-by-step explanation:

b to the power of 20 over a to the power of 12

Write a linear equation that is parallel to the line 3x−2y=14 and passes through the point (−6,−11) in slope-intercept form.

Answers

Y=3/2x -2 is your answer

Please help me I will give you the brainliest (I Didn’t spell that right but don’t care)

Answers

Answer:

positive

positive

negative

1 or -1

Step-by-step explanation:

Answer:

The product of two positive integers is always a positive

The product of two negative integers is always a positive

The product of a positive integer and a negative integer is always negative

The product of any integer and -1 is always a 1 or -1

Step-by-step explanation:

Hope this helps :)

How would you simplify (-4r^5)(2r^8)? ​

Answers

Answer:

− 8 r^ 13

Step-by-step explanation:

Combine like terms

-4r and 2r= -8r

then add the exponents

5+8=13

THEN SIMPLIFY

-8r^13

3. You go to a restaurant and spend $82. You find out the bill is 15% off, how much do you pay?

Answers

Answer:

$69.7

Step-by-step explanation:

82*0.15(15%)

12.3

82-12.3=

69.7

26 people got off a boat 22 people got on now there's 74 people on the boat how many were on the boat to begin with

Answers

Answer:

Step-by-step explanation:

there were 78 people all together because 74-22=52 because it was 52 people altogether after the 26 got off and the 22 got on so 52+26=78 so THE ANSWER IS 78

A sample is taken from all college freshmen Right-handed students areexcluded. What is this an example of?

A Response bias
B. Selection bias
C. Nonselection bias
D. Nonresponse bias

Answers

Answer: it’s selection bias

Step-by-step explanation:

Mr. Nell is painting his coffee table. The micture that he adds to the paint is made of 5/6 cup
baking soda for every 5 tablespoons of water.
What is the rate in cups of baking soda per tablespoon of water?

Answers

Answer:

1/6 cups

Step-by-step explanation:

5/6 /5 = 5/6 divided by 5

= 5/6 x 1/5

= 1/6

so your answer is 1/6 cups of baking soda per tablespoon of water

yw ;)

The rate for cups of baking soda per tablespoon of water is 1/6.

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

The mixture that he adds to the paint is made of 5/6 cup baking soda for every 5 tablespoons of water.

Hence, The rate for cups of baking soda per tablespoon of water is,

⇒ 5/6 ÷ 5

⇒ 5/6 × 1/5

⇒ 1/6

Learn more about the divide visit:

https://brainly.com/question/28119824

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You and your soccer team are interested in buying jerseys. The price of each jersey is $50. If you buy 4 jerseys, you will get 10% discount. How much do you have to pay if you buy 8 jerseys?

Answers

Answer: $4.84

Explanation:

County A: Multiply the price by the sales tax to find out how much money the sales tax will add. Remember to convert percent to decimal!

$75 * 0.0725 = $5.4375

Add the original price and the sales tax.

$75 + $5.4375 = $80.4375

County B: Multiply the price by the sales tax to find out how much money the sales tax will add. Remember to convert percent to decimal!

$70 * 0.08 = $5.6

Add the original price and the sales tax.

$70 + $5.6 = $75.6

Then take the difference.

80.4375 – 75.6 = 4.8375

Round to the nearest hundredth: $4.84

How do I solve this?

Answers

Answer: A

One solution    x = 60/23   y=12/23  z= -72/23

How?    in the photos attached

Step-by-step explanation:

Take the first equation and rewrite

5x +y = 1  becomes  y = 1 -5x

Substitute for y in the second equation  

Solve for x

The rest of the steps are more of the same: substitute and solve as scownin the photos

They overlap a bit to be sure it's all there

The function C(x)=25x +2,500 represents the cost to produce x number of items. How many items should be produced so that the average cost is less than $75

Answers

Answer:

More than 50 items

Step-by-step explanation:

Answer:

there are more than 50 items

Step-by-step explanation:

The cost of Marianne's old bracelet is two-thirds
The cost of her new bracelet. The cost of her old
bracelet is $18. Need help what Is this solution

Answers

Answer:

the answer is $12

Step-by-step explanation:

to get the answer you would multiply 18 by 2/3 or you can divide by 3 then multiply what you get from dividing by 3 by 2.

version 1: 18(2/3) = ?

              12

version 2: 18/3=?

                6   you want to multiply by to because that is 1/3 of the original price

               6(2) = 12

Either way you get the same answer. Hopes this helps

Which of the following equations is equivalent to 4(6p – 3) = 26?
A: 10p – 1 = 26
B:24p – 12 = 26
C: 10p – 7 = 26
D: 24p – 3 = 26

Answers

Answer:

B. 24p - 12 = 26

For both 4(6p – 3) = 26 and 24p - 12 = 26,  [tex]p = \frac{19}{12}[/tex]

I hope that this helps you!

Answer:

B:24p – 12 = 26

Step-by-step explanation:

I will give you branilest

To transmit information on the internet, large files are broken into packets of smaller sizes. Each packet has 1,500 bytes of information. An equation relating packets of information is given by b = 1500p where p represents the number of packets and b represents the number of bytes of information.

a. How many packets would be needed to transmit 30,000 bytes of information?

Answers

Answer:

20

Step-by-step explanation:

If you have 1,500 per package and you need to find how many you will need to get 30,000 all you have to do is divide 30,000 by 1,500 and you get 20 packages. So the final equation would be 30,000=1500(20)

HOPE THIS HELPS!

Answer:20 Packets

Step-by-step explanation:Each packet is worth 1500b so 30,000b/1500b gives you 20 packets

The standard unit for measurement for volume is

Answers

Answer:

I'm pretty sure it's cubic meters


4.2540 centimeters are equal to how many inches?!

Answers

Answer: 1.6748031in

Step-by-step explanation:

2. Use the Remainder Theorem to evaluate the given polynomial when x = 2.
f(x) = 3x4-5x3- 7x +12

Answers

Answer:

The answer is x= 9 over 7 or 9/7 :)!

Step-by-step explanation:

Suppose 7 quesadillas is 49 dollars and 2 mexican burritos are 10 dollars. Find the price of 1 quesadilla and 10 mexican burritos. Explain how you set up this algebraic expression.

Answers

Answer:

17$

Step-by-step explanation:

quesadillas =x

burritos =y

7x =49 $

x=49 :7

x=7$cost a quesadillas

2 y =10$

y=10 :2

y=5$cost a burrito

x+10y

7 +2×5

17 $cost 1 quesadilla and 10 burritos

Answer:

1 quesadilla is 7 dollars and 10 burritos are 50 dollars

Explain:

49/7 is 7, so each quesadilla is 7 dollars. Also, 10/2 is 5 dollars, so each burrito is 5 dollars.

distance from (-2,3) to (3,-3)

Answers

Answer:

(5,-3)

Step-by-step explanation:

Exact form is the square root of 61. The decimal form is 7.81025

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