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
Elenna [48]
3 years ago
14

Directions: Type your solutions into this document and be sure to show all steps for arriving at your solution. Just giving a fi

nal number may not receive full credit.
PROBLEM 1
A website reports that 70% of its users are from outside a certain country, and 60% of its users log on the website every day. Suppose that for its users from inside the country, that 80% of them log on every day. What is the probability that a person is from the country given that he logs on the website every day? Has the probability that he is from the country increased or decreased with the additional information?
Mathematics
1 answer:
butalik [34]3 years ago
5 0

Answer:

The  probability is  P(I  | \ L ) =0.4

Yes with the additional information that the person logs on everyday the probability increased from  P(I) =  0.3  to P(I |  L )  =  0.4

Step-by-step explanation:

From the question we are told that

   The probability that the user is from outside the country is  P(O) =  0.7

    The probability that the user log on everyday is  P(L) =  0.6

    The  probability that the user log on everyday and he/she is from inside the country  is  P(L| I) =  0.80

Generally using Bayes theorem the the probability that a person is from the country given that he logs on the website every day is mathematically represented as

        P(I  | \ L ) =  \frac{ P(L|I) *  P(I)}{ P(L)}

Here P(I) is the probability that the person log on every day and it is mathematically evaluated as

        P(I)  =  1 - P(O)

          P(I)  =  1 - 0.7

         P(I)  = 0.3

So

      P(I  | \ L ) =  \frac{ 0,8 *  0.3}{ 0.6}

      P(I  | \ L ) =0.4

You might be interested in
Please help me with this
Xelga [282]

Answer:

30

Step-by-step explanation:

Use PEMDAS

parentheses is first

3+7=10

There's no exponents

You have to do it in order from left to right

6÷2=3

3*10=30

4 0
2 years ago
Read 2 more answers
A jar contains 6 red balls, 3 green balls, 5 white balls and 7 yellow balls. Two balls are chosen from
jeka57 [31]

Answer:

A jar 6red ball 3green ball 5 white ball 7yellow ball

5 0
2 years ago
16 2/3% of what number is 72
eimsori [14]

Answer:

The number is 4321

Step-by-step explanation:

Let the number be x

16 2/3% = (16x3+2)/3 % = 50/3 %

50/3 % of X = 72

50/300 x X =72

X=(72 x 300)/50

X=21600/50

X=4321

4 0
3 years ago
While testing a new vaccine, a lab technician noticed that the number of bacteria reduced by half every minute. How long does it
son4ous [18]
To start, find your equation, n=3000(.5)^t, n being your number of bacteria and t being your time. Now plug in 375 for n and solve for t, 375=3000(.5)^t, .125=.5^t, t=log_{.5} .125=3. This means your answer is 3 minutes. To check it, plug it into your equation. n=3000(.5)^t=3000(.125)=375
5 0
3 years ago
A personal balance sheet
Bingel [31]

A personal balance sheet provides an overall snapshot of your wealth at a specific period in time. It is a summary of your assets (what you own), your liabilities (what you owe) and your net worth (assets minus liabilities).

8 0
2 years ago
Other questions:
  • Student finished 8 homework problems. If the ratio of the problems she finished to the problems she had left was 4:1 How many ho
    12·1 answer
  • Which of the following below could have created this graph
    15·1 answer
  • The Perimeter of a rectangle is 304 cm. The length is 40 cm longer than the width. Find the length and width.
    5·1 answer
  • 1/4k = 3 (-1/4k + 3)
    10·2 answers
  • The number of camera phones shipped globally can be modeled by the function y=1.28e^1.31x where x is the number of years since 1
    10·1 answer
  • Doug got 8 out of 10 questions correct on a math quiz. If each question was worth the same number of points, and the test was wo
    6·2 answers
  • Question / Of 9
    11·1 answer
  • Help on number 3 only use Pythagorean thym I give brainliest
    5·1 answer
  • CHANGE THE SUBJECT OF A FORMULA
    15·1 answer
  • QUESTION 9 of 10: You enter a bid. Your cost on the product you make is $112 per unit. If you bid at $138 per unit, what percent
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!