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
Anit [1.1K]
3 years ago
12

A fair coin is tossed repeatedly. What is the probability that three heads in a row will occur before a tail followed by two hea

ds?
Mathematics
1 answer:
Masteriza [31]3 years ago
3 0

The probability that you can get N heads in a row would be:

Let <span>p</span> be the probability of flipping a heads. Let <span>x</span> be number of flips needed to achieve <span>h </span>consecutive heads. The solution is <span><span>E(x) = (<span><span>1−<span>p^h) / (</span></span><span><span>p^h</span>(1−p))</span></span></span></span>

This expression may be derived as follows. The probability of being successful immediately is <span><span>p^r.</span></span> However, one might get a tails immediately. In that case, the number of flips needed is <span><span>1+E(x) </span></span>(one flip has been used and we are back to the original position). We might get a heads and then a tails. In this case two flips have been used and we are back to the original position. Continue this up to <span><span>h−1</span></span> heads followed by a tails in which case <span>h</span> flips have been used and we are back to the original position.

You might be interested in
Which construction of parallel lines is justified by the theorem "when two lines are intersected by a transversal and the corres
Ugo [173]

Answer:

c

Step-by-step explanation:

I think you missed attaching the photo, please see my attachment.

And the correct answer is C,

When you look at where the arc meets the parallel lines, if you create a seam between two points, you get a straight line parallel to the horizontal lines  so it makes the corresponding angles are congruent.

5 0
3 years ago
Currently going through a test
Varvara68 [4.7K]

Answer:

Step-by-step explanation:

Take a crack at number one. It looks good to me.

5 0
3 years ago
Read 2 more answers
Jacques wants to fit a scale model of this room on an 8.5” by 11” paper. What scale factor should he use? He wants to make the s
AleksAgata [21]

Answer:

1:20 scale should be perfect

Step-by-step explanation:

8 0
3 years ago
PLS HURRY
Rus_ich [418]

Answer:

x+y=-1

Step-by-step explanation:

6 0
3 years ago
There is 2 questions both need work shown
DaniilM [7]

Answer:

1.) 46.66 (MANY SIXES)  2.) 4180.5

Step-by-step explanation:

WELL. Its easy, you just need to divide the work.

1) 13.82 /0.3  

=46.066667


2.) 863.1/0.2

=4180.5


Hope this helps ;)

6 0
3 years ago
Other questions:
  • Multiply the following polynomials and enter the MISSING LINEAR Term :
    9·2 answers
  • Jack is playing a game. When a player wins 3 consecutive games, the player receives 10 bonus points and then the player’s total
    12·1 answer
  • 15 POINTS! I WILL MARK YOU BRANLIEST! :) Find the volume of this prism below...
    15·2 answers
  • Which equation can be used to find the surface area of the cylinder?
    13·1 answer
  • Help Pls......... ".... - - . -
    10·1 answer
  • Seclate all the numbers that are solutions to the inequalitt w&gt;1.
    8·2 answers
  • Please help me with this<br> question​
    10·1 answer
  • BRAINLIEST TO CORRECT
    7·2 answers
  • Badly need help answering this assignment about ANGLES BETWEEN TWO LINES before 6:00 pm. Thank you so much po!
    11·1 answer
  • Can you answer this question
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!