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
Ilia_Sergeevich [38]
3 years ago
10

The probability that a certain machine will produce a defective item is 0.20. if a random sample of 20 items is taken from the o

utput of this machine, what is the probability that there will be 3 or more defectives in the sample?
Mathematics
1 answer:
GenaCL600 [577]3 years ago
7 0
Use binomial distribution, with p=0.20, n=20, x=3
P(X=x)=C(n,x)p^x (1-p)^(n-x)

P(X>=3)
=1-(P(X=0)+P(X=1)+P(X=2))
=1-(C(20,0)0.2^0 (0.8)^(20-0)+C(20,1)0.2^1 (0.8)^(20-1)+C(20,2)0.2^2 (0.8)^(20-2))
=1-(0.0115292+0.057646+0.136909)
=1-0.206085
=0.793915
You might be interested in
How much is 74 divided by 4
exis [7]

Answer:

18.5

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
-2 divided by 1/4 please show your work
Aneli [31]
-2 / 1/4
If you are dividing you have to switch 1/4 to 4/1

-2/1  / 4/1
= -8
Hope this helped
6 0
3 years ago
Can anyone help me with this
ANTONII [103]

Answer:

Sure, what do you need

Step-by-step explanation:

4 0
3 years ago
Drag each label to the correct location on the table . Triangle EFG . Rectangle PQRS . Triangle TUV . Rectangle ABCD . Your choi
Tanya [424]

Answer:

there should be a pic or a diagram  

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Write three (3) scenarios that describe three different real-world functions. Each scenario should use two of the variables from
NISA [10]
Here is one <span>Jake’s salary depends on the number of hours he works.
The independent variable is the number of hours and the dependent variable is salary.
Let x = the number of hours worked
Let y = Jake's salary
The set of ordered pairs {(1, 10), (2, 20), (3, 30), (4, 40), (5, 50)} can be used to represent
the function, assuming Jake earns $10 per hour. </span>
8 0
3 years ago
Other questions:
  • Pls help
    10·1 answer
  • Karl visited his doctor because he found he had difficulty sitting upright and controlling his hands and movements. Which neurol
    15·2 answers
  • Help with questions 1-10
    7·2 answers
  • 18= 5m + 3 .. what would b m?
    11·2 answers
  • Solve: 12 + (-13) - 12 - 5<br> A: 14<br> B: -12<br> C: -18<br> D: 45
    6·1 answer
  • F(x) = 2x^2 – 3x – 9<br> g(x) = 4x^2 - 9<br> Find ( f/g)(x).
    5·1 answer
  • Solve the equation
    11·1 answer
  • Solve seven tenths times two fourths?
    14·1 answer
  • Find the length of the angle indicated for each trapezoid.​
    6·1 answer
  • In triangle ABC measure of angle A equals 45°. The altitude divides the side AB into two parts of 20 and 21 units. Find BC.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!