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
gavmur [86]
3 years ago
10

According to the Department of Transportation, 27% of domestic flights were delayed in the last year at JFK airport. Five flight

s are randomly selected at JFK. What is the probability that all five flights are delayed?
Mathematics
1 answer:
Mars2501 [29]3 years ago
4 0

Answer:

The probability that all the five flights are delayed is 0.2073.

Step-by-step explanation:

Let <em>X</em> = number of domestic flights delayed at JFK airport.

The probability of a domestic flight being delayed at the JFK airport is, P (X) = <em>p</em> = 0.27.

A random sample of <em>n</em> = 5 flights are selected at JFK airport.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> and <em>p</em>.

The probability mass function of <em>X</em> is:

P(X=x)={5\choose x}0.27^{x}(1-0.27)^{5-x};\ x=0,1,2...

Compute the probability that all the five flights are delayed as follows:

P(X=5)={5\choose 5}0.27^{5}(1-0.27)^{5-5}=1\times 1\times 0.207307=0.2073

Thus, the probability that all the five flights are delayed is 0.2073.

You might be interested in
How do you interpret algebraic expressions in terms of context
Zepler [3.9K]
By Interpret expressions that represent a quantity in terms of its context. Interpret parts of an expression, such as terms, factors, and coefficients. Interpret complicated expressions by viewing one or more of their parts as a single entity.
5 0
3 years ago
Laura sold t-shirts at a festival. She made $4 for each t-shirt she sold. Her expenses were $25. If she made a profit of $71, ho
Mamont248 [21]

Answer:

24 t shirts

Step-by-step explanation:

revenue - expenses = profit

profit = $71

expenses = $25

revenue = money made from t shirts = $4 for each t shirt, x times (she makes $4 for each t shirt and sells x t shirts) = $4 * x

4 * x - 25 = 71

add 25 to both sides to isolate the variable and its coefficient

4x = 96

divide both sides by 6 to isolate x

x = 24

4 0
2 years ago
Blake drives 448 miles on 16 gallons. How many miles does Blake drive on one gallon?
Rus_ich [418]
28 miles! Just devide em hope it helped! Pls brainest
8 0
3 years ago
Read 2 more answers
What is the value of the ratio 12 1/2 14 3/4 feet
Tanzania [10]
1.4 hope ithelped!



:D
3 0
3 years ago
keith is an independent filmmaker . hes planning to serve pizza and sub sandwiches at his first film debut . the number of sandw
tamaranim1 [39]

Answer:

35 sandwiches

Step-by-step explanation:

62÷2=31

31+4=35

3 0
3 years ago
Other questions:
  • Can someone answer this question correctly it's my test please don't answer if you don't understand please show work I need it t
    13·1 answer
  • Find all real zeros of the function y= -3x+9
    8·2 answers
  • What is the distance between ( 8 , − 3 ) (8,−3)left parenthesis, 8, comma, minus, 3, right parenthesis and ( 4 , − 7 ) (4,−7)lef
    6·1 answer
  • Please answer with steps!
    13·1 answer
  • The area of the square is 25. What is each side length
    14·1 answer
  • Which expression is equivalent to 10x+9+10x+1010x+9+10x+10?
    15·2 answers
  • 15 for brainliest answer!!<br> PLEASE HELP ME ON B JUST TELL ME THE FORMULA THATS ALL I BEG FOR
    5·1 answer
  • The table shows the number of yards of ribbon needed to make different numbers of bows.
    9·1 answer
  • PLz HELP ME NOW AND I WILL MARK U BRAINLIEST
    14·1 answer
  • What is the range of a piecewise function g of x, where part 1 is x squared minus 5 for x less than negative 3 and part 2 is 2 t
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!