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
Shtirlitz [24]
3 years ago
15

the numbers below represent 10 trials of a simulation 2632, 1365,9367,2056, 0026, 6564, 1434, 8045, 4781, 8681 the numbers 0-7 r

epresent students who watched television last night and 8 and 9 represent students who did not. based on the simulated data, what was the probability that exactly 2 out groups out of 4 randomly selected watched television last night show with work
Mathematics
1 answer:
algol133 years ago
6 0

Answer:

  1/10

Step-by-step explanation:

Apparently, a "trial" is a representation of a sample of 4 students. If the digits in that sample are 8 or 9, the students did not watch television. We can revise each of the trials by changing digits 0-7 to W, and digits 8-9 to N. (W = watched TV; N = did not watch TV.)

Now, the 10 trials are ...

  WWWW, WWWW, WWWW, WWWW,

  WWWW, WWWW, WWWW, NWWW, WWNW, NWNW

Of the 10 trials, 1 trial had the result that exactly 2 of the 4 watched TV.

The probability that exactly 2 of 4 watched TV is about 1/10 = 10%.

You might be interested in
What is the answer to this question
Lesechka [4]

Remark

There's a lot you don't know here. Are DE and GF parallel? Is B a right angle? You can't assume that it is. The safest way to proceed is to give x in terms of 58 and B. You might get an answer that gives you something like 32 but I don't think you can say that unless you are told somewhere that ABC is a right angle triangle with the right angle at B.

So what to do.

<BAC = 58o                               That's because <BAC = <IAK They vertically opposite.

<ABC + <BAC + <ACB = 180o       All triangles have 180o

<ACB = 180 - 58 - <ABC                Solve for an unknown angle of a triangle.

<ACB = 122 - <ABC

x = <ACB                                       Vertically opposite angles.

x = 122 - <ABC                             Answer  It's 32 if ABC is a right angle.  

6 0
3 years ago
If x represents the number since 1988 what does x=32 represents
Alenkasestr [34]
<h3>Answer: The year 2020</h3>

Explanation:

x is the number of years since 1988

x = 0 represents the year 1988

x = 1 is the year 1988+1 = 1989

x = 2 is the year 1988+2 = 1990

etc

x = 32 is the year 1988+32 = 2020

6 0
3 years ago
34, 57, 58, 56, 21. Which measure of center best represents the data? Explain why you chose that measure of center.
sveticcg [70]

Answer:

Median

Step-by-step explanation:

The measure of center that best represents the data is median because the data is ordinal, that is it is in ranks. The first is 21, the second is 34, third is 56, fourth is 57 and fifth is 58.

6 0
3 years ago
Does 4(2x-5) equal 8x-5 or 8x-20? explain
Scorpion4ik [409]
4(2x-5)
8x-20

it is equal to 8x-20 because you simplify it and it turns into that.
HOPE I HELPED!!!


8 0
3 years ago
Read 2 more answers
The front of an A-frame house is in the shape of a triangle.The height of the house is 20 feet.The area of the front of a A-fram
ipn [44]
600 divided by 20=30
30x2=60 which is the answer

equation= 600=2x area divied by height 
7 0
3 years ago
Other questions:
  • Which expression is equivalent to 1/2(2n+6 ​
    14·2 answers
  • A car traveled 3⁄4 mile in one minute at constant speed. What was the speed of the car in miles per hour?
    10·2 answers
  • A new cell phone is on sale for 40% off its original price. The sale price is $48.
    13·1 answer
  • HELP!!!!!
    8·1 answer
  • Whats the sum of Radical 18 and Radical 72?
    8·1 answer
  • Someone help me plsh
    11·1 answer
  • Solve the equation 4 (x-3) + 5=1
    5·1 answer
  • Does anyone know this one! Thanks
    11·2 answers
  • What is 10 as a percent?
    15·2 answers
  • 7/8, 3/10 whats the common denominator
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!