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
fgiga [73]
2 years ago
11

The mean number of daily surgeries at a local hospital is 6.2. Assume that surgeries are random, independent events. (a) The cou

nt of daily surgeries follows approximately: A Poisson distribution with mean 6.2 and standard deviation 2.49. A binomial distribution with mean 6.2 and standard deviation 3.8. A binomial distribution with mean 6.2 and standard deviation 1.76. A Poisson distribution with mean 6.2 and standard deviation 6.2. A binomial distribution with mean 6.2 and standard deviation 3.1. (b) The probability that there would be only 2 or fewer surgeries in a given day is approximately (round to 4 decimal places):
Mathematics
1 answer:
Scilla [17]2 years ago
7 0

Answer:

a) correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

b) probability for only 2 or less than 2  surgeries  in a given day is 0.0536

Step-by-step explanation:

Given data:

mean number is given as 6.2

correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

we know that variance is given as\sigma^2 = mean = 6.2

hence, standard deviation is given as \sqrt{6.2} = 2.48998

thus standard deviation is 2.49

correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

b) probability for only 2 or less than 2  surgeries  in a given day is

P(X \leq 2) = P(X =0) + P(X =1) + P(X =2)

                 = \frac{e^{-6.2} 6.2^0}{0!} +\frac{e^{-6.2} 6.2^1}{1!} +\frac{e^{-6.2} 6.2^2}{2!}

                 = 0.002029 + 0.012582+ 0.039006

                 = 0.053617

                = 0.0536

You might be interested in
Help me below so i dont fail please
andreyandreev [35.5K]
Your good its 80 one way you can always tell if its a triangle  is if all the angles add up to 180 
8 0
3 years ago
The table of values represents a quadratic function.
KengaRu [80]

Answer:

-19

Step-by-step explanation:

It's -19 I took the test

Proof in the picture below

3 0
3 years ago
Read 2 more answers
2/9 of students in a school are in sixth grade how many sixth graders are in the school if the school has 27 students
Pani-rosa [81]

Answer:

The areas of the squares adjacent to two sides of a right triangle are shown below.

 

 

What is the area of the square adjacent to the third side of the triangle?

units^2  

2

Step-by-step explanation:

5 0
3 years ago
Solve the following system of equations by elimination:
sergeinik [125]

Answer:

x=4

y=5

(4,5)

Step-by-step explanation:

6 0
2 years ago
Let f(x) = 2x - 7 and g(x) = -6x - 3. Find f(x) + g(x) and state its domain.
DochEvi [55]
-4x-10
Domain: negative infinity to positive infinity
6 0
3 years ago
Other questions:
  • An aquarium in the shape of a right rectangular prism is 12.5 inches long, 6 inches wide and 8 inches high. What is the total am
    9·1 answer
  • The median and mean<br> PLZ HELP
    11·1 answer
  • Check each true statement about the number 7- 3i
    6·1 answer
  • A farmer has 220 bushels of wheat to sell it has roadside stand he sells an average of 14 and three-quarter bushels each day rep
    5·1 answer
  • the solutions to a quadratic question are -6 ans +6. You figure it the original equation and write it in standard form ax2+bx+c=
    5·1 answer
  • Cece is finding the surface area of a square pyramid by finding the sum of the areas of its faces. Which statement best describe
    10·2 answers
  • Can someone check my answers to see if they're correct?
    13·1 answer
  • How to use replacement in probability
    11·1 answer
  • On every three hamburgers that McDonalds makes, they use 9 pickles. How many pickles would they use on 100 burgers?
    6·2 answers
  • Help on this question please?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!