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
erma4kov [3.2K]
3 years ago
7

The number of errors in a textbook follow a poisson distribution with a mean of 0.01 errors per page. what is the probability th

at there are 3 or less errors in 100 pages? round your answer to four decimal places (e.g. 98.7654).
Mathematics
1 answer:
neonofarm [45]3 years ago
3 0
Mean number of errors in each page = 0.01
Mean number of errors in 100 pages = 0.01*100=1

It is possible to use the cumulative distribution function (CMF), but the math is a little more complex, involving the gamma-function.  Tables and software are available for that purpose.

Thus it is easier to evaluate with a calculator for the individual cases of k=0,1,2 and 3.

The Poisson distribution has a PMF (probability mass function) 
P(k):=\frac{\lambda^ke^{-\lambda}}{k!}
with λ = 1
=>
P(0):=\frac{1^0e^{-1}}{0!}=0.3678794
P(1):=\frac{1^1e^{-1}}{1!}=0.3678794
P(2):=\frac{1^2e^{-1}}{2!}=0.1839397
P(3):=\frac{1^3e^{-1}}{3!}=0.0613132
=>
P(k
or
P(k<=3)=0.9810 (to four decimal places)
You might be interested in
A suvery shows that 55℅​
gizmo_the_mogwai [7]

Answer: No. The intervals defined by the margin or error overlap

Step-by-step explanation:

If we think about it, with the worst margins, 55% could be 48% and then the 45% would be 52%, showing there is no clear yes or no and it is possible that the intervals could overlap

7 0
2 years ago
For what value of x is line a parallel to line b?<br><br> (Yo, please help me so I can go to sleep.)
iogann1982 [59]
X=20

If they're parallel the other number in the same spot as 5x+15 equals that, so 5x+15=115 because if they are parallel they're the same if same spot and same line going through them.

115-15 = 100
5x=100
Divide by 5 both sides
X=20

If x=20 then these lines would be parallel
6 0
3 years ago
A has $32 more than B, and B has five times as much money as C. If C has d dollars, how much does A have? Answer:
Hoochie [10]

A = B+32

B = 5C

A = 5C+32

C has d dollars so replace d for c

A = 5d+32

7 0
3 years ago
silo has a volume of 18,840 ft³. The height of the silo is 60 ft. What is the silo's radius? Use 3.14 to approximate ππ .
jek_recluse [69]
To find r, you need to isolate it. pi*r^2*60=18,840. divide 18,840 by 60, then pi, it comes out at 100. Now find the square root to get 10

r=10
4 0
3 years ago
Difference of pi from the 3rd to the 15th decimal point
FrozenT [24]
Here are all 15 digits of pi:

pi = <span>3.141592653589793

So you can see the difference is 3-1 = 2</span>
3 0
3 years ago
Other questions:
  • A company mixes pecans, cashews, peanuts, and walnuts to make a batch of mixed nuts. About 15.4% of the mixed nuts in a batch ar
    10·1 answer
  • Drey makes $10 an hour plus $15 an hour for every hour of overtime. Overtime hours are any hours more than 40 hours for the week
    6·1 answer
  • A service station has a pump that distributes diesel fuel to automobiles. The station owner estimates that only about 3.2 cars u
    6·1 answer
  • Polly has a very rain number of dollar bills in her purse and no change.She spends half the money on a scarf and gives $1dollar
    6·1 answer
  • Between which pair of numbers is the exact product of 379 and 8 ?
    5·2 answers
  • Solve the equation<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%20-%206%7D%20%20%2B%202%20%3D%206" id="TexFormula1" title
    15·1 answer
  • THE NUMBERS OF PI ARE 3.141592653589793238462643383279502884197169399375105820974944592307 AND SO ON
    10·1 answer
  • A machine can produce 6 yards of fabric in 2 minutes. How much fabric can the machine can produce in 1 hour
    10·1 answer
  • Can someone help me answers these questions
    5·2 answers
  • Suppose you invest $5,000 at 4% annual interest. How much money would your investment be worth after 10 years? Round your answer
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!