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
sweet-ann [11.9K]
3 years ago
9

Let W be a random variable giving the number of heads minus the number of tails in three tosses of a coin. List the elements of

the sample space S for the three tosses of the coin and to each sample point assign a value w of W.
Mathematics
1 answer:
Levart [38]3 years ago
8 0

Answer:

HHH, W = 3-0 = 3

HHT, W= 2-1=1

HTH, W= 2-1=1

THH, W=2-1 =1

HTT, W= 1-2=-1

THT, W= 1-2=-1

TTH, W=1-2=-1

TTT, W=0-3 = -3

So then the sample space for W is:

S= [-3,-1,1,3]

Just 4 possible values from 8 possible combinations for the 3 random tosses

Step-by-step explanation:

For this case we define W as the random variable who represent the number of heads minus the number of tails in three tosses of a coin.

W= # heads- # coins

Since we toss a coin 3 times we have 2*2*2= 8 possible results. We can list the results and the corresponding values for W like this:

HHH, W = 3-0 = 3

HHT, W= 2-1=1

HTH, W= 2-1=1

THH, W=2-1 =1

HTT, W= 1-2=-1

THT, W= 1-2=-1

TTH, W=1-2=-1

TTT, W=0-3 = -3

So then the sample space for W is:

S= [-3,-1,1,3]

Just 4 possible values from 8 possible combinations for the 3 random tosses

You might be interested in
Write an expression for the sequence of operations described below.
Murrr4er [49]

Answer:

<em>8</em><em>+</em><em>s</em><em>+</em><em>n</em>

Step-by-step explanation:

Add s to 8=8+s

and add 3 to result=8+s+3

3 0
3 years ago
Factor 75t2 + 12.<br> 3(5t + 2)2<br> 3(25+2 +4)<br> 3(251-4)
frosja888 [35]

Answer:

75t^2+12=3(25t^2+4)

Option C)

Step-by-step explanation:

Here we are given with the expression 75t^2+12

The GCF of 75t^2 and 12 is 3

Hence we take 3 as GCF and bring it in front of the bracket.

3(25t^2+4)

It can not be factorise furthure  as there is no GCF of 25 and  also there is no rule for sum of squares so that we may apply it on this. Hence the answer would be

3(25t^2+4)

Option C)

4 0
3 years ago
Find the mean for the given set of data.<br><br> 18, 15, 22, 18, 25, 19, 23<br><br> 18<br> 19<br> 20
enot [183]

Answer:

20

Step-by-step explanation:

When you add them all up and divide by seven, you get 20

4 0
3 years ago
Read 2 more answers
Receiving
forsale [732]

Answer: 30.8%

Step-by-step explanation:

Given

Total students receiving financial aid are 6101

Students who are graduate and receiving financial aid are 1879

Probability is the ratio of the favorable and total outcomes

So, the probability is  given by

P=\dfrac{1879}{6101}\\\\P=0.307\ \text{or}\ 30.8\%

8 0
3 years ago
Read 2 more answers
7. What is the value of y in the diagram shown to the right?
Archy [21]
I think the answer would be C
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of x
    12·1 answer
  • Find the product. y 4 · y 3
    12·1 answer
  • What’s the correct answer for this?
    13·1 answer
  • Evaluate f(x) = 5x2 - 4x - 9 for f(-2)
    10·1 answer
  • What’s the value of x?
    6·1 answer
  • (–3)^5<br><br><br><br> What does the ^ mean? Multiplication?
    11·2 answers
  • A right rectangular prism is filled to capacity with 152 cubes, each with 12 -inch long edges. What is the volume of the prism?
    6·2 answers
  • A line passes through the point (8, -7) and has a slope of
    8·1 answer
  • Which best describes the association between variables x and y
    7·1 answer
  • 5 x 4\9 can you tell me the way to get the answer
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!