1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
oksian1 [2.3K]
3 years ago
13

Karen is starting a career as a professional wildlife photographer and plans to photograph Canadian Geese at one of the staging

grounds during their migration in North Eastern Manitoba. She booked a place in a hide at the edge of a lake and plans to photograph the geese as they land on the water. For the price of a room in the Hilton ($200 per day), she gets a spot on a wooden bench shared by other photographers, a muddy floor, a bracket to mount her telephoto lens, a tent to sleep in and delicious meals of freshly caught fish. Last year, during a stay of 3 days in this hide, she got 2 shots worth $5000 each. She regards this as typical for this time of year although good shots happen at random and each day is independent of the others. To establish her reputation Karen only sells $5000 photographs. This year she has booked 4 days in the hide. What is the standard deviation of her revenue from one day? (The answer is $4082, I just don't know how they got the answer)
Mathematics
1 answer:
balandron [24]3 years ago
3 0

Answer:

$5000*0.816 = $4082

Step-by-step explanation:

It's a strange question, but based on the statement and the question it sounds like it's a poisson distribution:

* For 3 days she was able to get 2 good shots (<em>typical of that time of the year</em>)

* Good shots happen randomly

* Each day is independent of another

Let's call 'p' the probability that she makes a good shot per day

Let's call 'n' the number of days Karen is taking shots.

So, if in 3 days he got 2 good shots and that is typical at that time of the year, then the expected value for the number of good shots (X) is:

E(x)=\frac{2}{3}

For a Poisson distribution E (x)=\lambda\\\lambda= np

So:

\lambda =\frac{2}{3}

For a Poisson distribution the standard deviation is:

\sigma = \sqrt{\lambda}\\\sigma = \sqrt{\frac{2}{3}}

\sigma = 0.816 this is the standard deviation for the number of buentas taken.

So the standard deviation for income is the price of each shot per sigma

$5000*0.816 = $4082, which is the desired response.

You might be interested in
A rectangular lamina of uniform density is situated with opposite corners at (0,0) and (15,4). calculate its radii of gyration a
Sphinxa [80]
First, you have to find the moment of inertia along the x and y axes. Constant density is denoted as k.


I_{x}= \int\limits^15_0\int\limits^4_0 {k y^{2} } \, dx  dy= \frac{1}{3}k (15-4)^4=4880.33k

I_{y}= \int\limits^15_0\int\limits^4_0 {k x^{2} } \, dx  dy= \frac{1}{3}k (15-4)^4=4880.33k

Then, the radii of gyration for

x = √[I_x/m]
y = [I_y/m]

where m = k(15-4)² = 121k. Then,

x = y = [4880.33k/121k] = 40.33

I hope I was able to help you. Have a good day.
7 0
3 years ago
Can anyone help me with this. Click to see
IgorLugansk [536]

Answer: mean = 6

median = 7

mode = 8

Step-by-step explanation:

8 0
3 years ago
The rate 165 ounces and 11 boxes describes the relationship between the number of boxes and the weight of the crackers in the bo
barxatty [35]
165 ounces for 11 boxes.  I want to know the weight of 1 box.  How do I get 11 boxes to be 1 box.  Divide it by 11.

11/11 = 1 box.  Since I chose 11 I have to also use 11 for the ounces
165/11 = 15 ounces per box
4 0
3 years ago
Read 2 more answers
What is <br> 13<br> 21<br> as a decimal rounded to 3 decimal places?
kap26 [50]

Answer:

0.013

0.021

Step-by-step explanation:

I guess...

4 0
2 years ago
The numbers of students in the 7 schools in a district are given below.
Sidana [21]
The mean will decrease
6 0
3 years ago
Other questions:
  • A jar contains four coins: a nickel, a dime, a quarter, and a half-dollar. three coins are randomly selected from the jar. (a) w
    6·1 answer
  • PLS HELP I WILL MARK YOU AS BRAINLIEST ANSWER!<br> a=5+5
    9·2 answers
  • Simplify 10+6/2+3<br> 16/5<br> 3<br> 7<br> 11/3
    14·1 answer
  • a small submarine is at an elevation of -30 feet compared to sea level. what is its elevation after it ascends 9 feet? PLEASE HE
    11·2 answers
  • How to do all this question ?
    13·2 answers
  • The value of 3 x 10, when x = 2, can be
    8·1 answer
  • Swim floats are on sale at sam’s shop. They are marked 30% off of the original price of 18.00. How much will the float cost
    12·1 answer
  • Angela is getting a pedicure at a spa that also offers massages where customers pay by the minute. If Angela only gets a pedicur
    7·1 answer
  • For the function h defined by h(x) = 2x2 – 2, find h(-1/2).
    12·1 answer
  • the number of people with one type of flu doubles every day for several days what type of function represents this pattern
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!