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
You buy a touch iPod for $200, but it loses value at a rate of 10% each year. How much is your phone worth after 3 years?
NISA [10]

Answer:

145.8

Step-by-step explanation:

200 times .9 times .9 times .9

Because it is 3 years

6 0
3 years ago
Read 2 more answers
ILL MARK BRAINIEST IF YOU DO THIS CORRECTLY
ruslelena [56]
The answer is 5,6,6,7
6 0
3 years ago
Choose the pair of sets which is equivalent.<br><br><br><br>Answer and I will give you brainiliest ​
Likurg_2 [28]
I think it’s c i hope im correct
7 0
3 years ago
Which expression is equivalent to
Tresset [83]

Answer:

j^13

Step-by-step explanation:

j j j j j j j j j j j j j j

There are 13 j's so we raise j to the 13 power

j^13

5 0
3 years ago
When Stretch Gordon signed a contract to play basketball for the Toronto Raptors, he received a one-time $250 000 signing bonus.
creativ13 [48]

Answer:

Here's what I get  

Step-by-step explanation:

Stretch

(i) The equation

E = 250 000 + 100 000n

(ii) Variables

n = the number of games played

E = Stretch's total earnings in dollars

(iii) Constants

$250 000 = Stretch's signing bonus

$100 000  = the money earned for each game.

\begin{array}{ccc}\textbf{Games played} & \textbf{ Earnings/}\mathbf{\$}&\textbf{Earnings/}\mathbf{\$10^{6}} \\20 & 2 350 000 &2.35\\40 & 4 250 000&4.25 \\60 & 6 150 000 &6.15\\80 & 8 050 000&8.05 \\\end{array}

The graph shows how Stretch's total earnings vary with the number of games played.

(iv) Total earnings after 44 games

\begin{array}{rcl}E & = & 250000 + 100000n\\& = &250000 + 100000(44)\\& = &250000 + 4400000\\& = & \mathbf{4 650 000}\\\end{array}

Rory

E = 95 000n + 450 000

Rory's deal is better than Stretch's if they play fewer than 40 games.  

He starts off with a bigger signing bonus, but Stretch earns more money per game.

Stretch closes the gap with each game played.

By 40 games they have the same total earnings.

After 40 games Stretch has more total earnings.

 

8 0
3 years ago
Other questions:
  • The number of boys in a school is 120% the number of girls at the school. Find the number
    14·1 answer
  • If a 40 foot tree cast a 16 foot shadow, what is the length of the shadow cast by a 27 foot tree?
    11·2 answers
  • A student uses a solution that contains 16 grams of water to conduct an evaporation experiment. ​​At the end of one hour, the am
    6·2 answers
  • If Susie is 14, what was her age x years ago?<br><br> A.) x - 14<br> B.) 14 - x<br> C.) 14x
    12·1 answer
  • There are 2,000 players in a basketball tournament. In each round, half of the players are eliminated. Which function can be use
    6·1 answer
  • The current temperature is 48F. It is expected to drop 1.5F each hour. Determine how many hours the temperature will be 36 F.
    13·1 answer
  • HELP PLEASE
    11·1 answer
  • Which equation is true for the value a=7
    5·1 answer
  • A book is on sale for 30% off. The sale price of the book is $14. What is the original price of the book
    11·1 answer
  • Kelly went to a store to purchase a coffee pot. She will use a coupon for 20% off. She can calculate the cost before sales tax u
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!