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
slega [8]
2 years ago
10

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to fi

nd the probability of x successes given the probability p of success on a single trial. Round to three decimal places. n = 30, x = 12, p = 0.20
Mathematics
1 answer:
Keith_Richards [23]2 years ago
6 0

Answer:

P(X = 12) = 0.0064.

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem we have that:

n = 30, p = 0.2

We want P(X = 12). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 12) = C_{30,12}.(0.2)^{12}.(0.8)^{18} = 0.0064

P(X = 12) = 0.0064.

You might be interested in
What is an equation that models the sequence 400, 200, 100, 50, ?
katrin [286]
N / 2

400 / 2 = 200
200 / 2 = 100
100 / 2 = 50
50 / 2 = 25
25 / 2 = 12.5
4 0
3 years ago
The Golden Gate Bridge, which connects San Francisco to Marin County, is one of the most famous suspension bridges in the U.S. T
Wittaler [7]

Answer:

90

Step-by-step explanation:

3 0
2 years ago
MAFS.5.NF.2.5a
Mademuasel [1]

C would be the answer

5 0
3 years ago
What is meant by the order of operations?
Lady bird [3.3K]

Answer:

Step-by-step explanation: The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression. We can remember the order using PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

4 0
2 years ago
How do you simplify this using the distributive property
DedPeter [7]
12/3w+36/4
4w+9
your welcome
4 0
3 years ago
Other questions:
  • this month salespersons a made 11% of $67,530. salesperson b made 8% of $85,740. who made more commission this month? how much d
    14·2 answers
  • Tracy uses 1.5 cups of flour to make 1 loaf of banana bread. How many cups of flour does she need for 100 loaves of banana bread
    8·2 answers
  • In the diagram of right triangle ABC shown below, AB = 14 and AC = 9. What is the measure of
    7·1 answer
  • What is the answer 3x+(x-8)=120
    10·1 answer
  • Can someone answer this and please explain it???
    13·1 answer
  • 9. What is the area of the largest square?<br> A=2<br> A=36units2<br> A=64units2
    6·1 answer
  • WHAT IS THE ANSWER TO 2(22X12)X8
    12·2 answers
  • Can you help me do this pls thx and sum thing i got for Easter
    14·1 answer
  • use the coordinate plane above. write the ordered pairs that names each point. then identify the quadrant where each point is lo
    8·1 answer
  • Adozen of notebooks cost Rs 480. How Much will 7 note book cost? ​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!