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
bazaltina [42]
3 years ago
8

Based on a poll, 69% of internet users are more careful about personal information when using a public Wi-Fi hotspot.

Mathematics
1 answer:
Darya [45]3 years ago
8 0

Answer:

a) If we don't have enough info we can create bias in the results and that's not the idea. and since the experiment is conducted in public WIFI spot probably we have some information that will be not share with other and that probably will create bias in the results.

b) P(X \geq 1)

And we can use the complement rule and we have:

P(X \geq 1)= 1-P(X

P(X=0)=(4C0)(0.69)^0 (1-0.69)^{4-0}=0.00923

P(X \geq 1)= 1-P(X

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest, on this case we now that:

X \sim Binom(n=4, p=0.69)

The probability mass function for the Binomial distribution is given as:

P(X)=(nCx)(p)^x (1-p)^{n-x}

Where (nCx) means combinatory and it's given by this formula:

nCx=\frac{n!}{(n-x)! x!}

Part a

If we don't have enough info we can create bias in the results and that's not the idea. and since the experiment is conducted in public WIFI spot probably we have some information that will be not share with other and that probably will create bias in the results.

Part b

For this case we want this probability:

P(X \geq 1)

And we can use the complement rule and we have:

P(X \geq 1)= 1-P(X

P(X=0)=(4C0)(0.69)^0 (1-0.69)^{4-0}=0.00923

P(X \geq 1)= 1-P(X

You might be interested in
The segments shown below could form a triangle,
Brrunno [24]

Answer:

False

Step-by-step explanation:

The lengths do not adhere to the triangle inequality theorem. Which states that the sum of the side lengths of any 2 sides of a triangle must exceed the length of the third side.

4 0
3 years ago
Please help me with all thank you
zhenek [66]

Answer:

345x32=11040

546/7=78

789x24=18936

Step-by-step explanation:

7 0
3 years ago
15+9/2 leave your answer in fraction​
Korolek [52]
15 can be 15/1 = 30/2
30/2 + 9/2 = 39/2
6 0
3 years ago
Read 2 more answers
Which set of numbers form a right triangle
Setler79 [48]
The answer you are looking for is B. 7, 24, 25.

To find this, you could use Pythagorean Theorem (a^2 + b^2 = c^2). C is the hypotenuse, or the longest side (25 in this case). So you'd do 7^2 + 24^2 = 25^2. Solving for each would give you 49 + 576 = 625. Adding the left side, gives you 625 = 625. Thus probing, this is a right triangle.

I hope this helps!
6 0
3 years ago
How many terms are in the algebraic expression -7 + 12x4 - 5y8 + x?
Mazyrski [523]

Answer:

4

Step-by-step explanation:

Each mix of numbers and letters that is separated by a + or a - is a term.

5 0
3 years ago
Other questions:
  • Jackson's mom limits the amount of time he is allowed to play video games after Jackson plays for 9 minutes his mom tells him th
    8·1 answer
  • Use the compound interest formulas A = Pert and A = P(1 + ) to solve. Suppose that you have $11,000 to invest. Which investment
    9·1 answer
  • Glen is making accessories for the soccer team. He uses 771.78 inches of fabric on headbands for 36 players and 2 coaches. He al
    14·1 answer
  • What is 2/3 divide by 2/9
    15·1 answer
  • Carter I hope you see this please respond back
    7·2 answers
  • En tu cuaderno realiza la conversión de los siguientes decimales a fracciones.<br>a) 0.250 :<br>​
    13·2 answers
  • 3x + 2 = 32<br> What is x?
    7·1 answer
  • Which of the following equations describes the graph?
    14·1 answer
  • If six cans of soda cost nine dollars, how much would it cost for 8 cans.
    6·2 answers
  • Which statement describes the effect on the parabola y = x2 - 1 when it is changed to y = x2 +6?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!