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
dem82 [27]
3 years ago
13

If a person tosses a coin 23 times, how many ways can he get 11 heads

Mathematics
1 answer:
EastWind [94]3 years ago
3 0

Tossing a coin is a binomial experiment.

Now lets say there are 'n' repeated trials to get heads. Each of the trials can result in either a head or a tail.

All of these trials are independent since the result of one trial does not affect the result of the next trial.

Now, for 'n' repeated trials the total number of successes is given by

_{r}^{n}\textrm{C}

where 'r' denotes the number of successful results.

In our case n=23 and r=11,

Substituting the values we get,

_{11}^{23}\textrm{C}=\frac{23!}{11!\times 12!}

\frac{23!}{11!\times 12!}=1352078

Therefore, there are 1352078 ways to get heads if a person tosses a coin 23 times.


You might be interested in
Can you guys help me?
ioda

Answer:

61.93°

Step-by-step explanation:

sin x=15/17

=0.8824

sin-1 0.8824

=61.93°

5 0
2 years ago
A relation is plotted as a linear function on the coordinate plane starting at point E at
Jobisdone [24]
\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~{{ 0}} &,&{{ 27}}~) 
%  (c,d)
&&(~{{ 5}} &,&{{ -8}}~)
\end{array}
\\\\\\
% slope  = m
\stackrel{\stackrel{average}{rate~of~change}}{slope}= {{ m}}\implies 
\cfrac{\stackrel{rise}{{{ y_2}}-{{ y_1}}}}{\stackrel{run}{{{ x_2}}-{{ x_1}}}}\implies \cfrac{-8-27}{5-0}\implies \cfrac{-35}{5}\implies -7

well, when x = 0, namely at the very beginning, y = 27, thus, that IS the initial value.
4 0
3 years ago
Read 2 more answers
The function G(x)=f(x+3)+2 which of the following is true of the graph of g(x)?
zepelin [54]
G(x)=(x+3)+2

G(x) = (x-h) + k
h translates the graph left/right and k translates the graph up/down.
Because the equation is x- the parenthesis is (x - - 3) which makes h a negative 3 and will translate left. The k positive so it will move up.
Letter B
7 0
3 years ago
Which expression represents a number that is four times as large as the sum of 8 and 160?
DedPeter [7]
ANSWER: x = 4 ( 8 + 160 )

STEP BY STEP:

Let's start by getting a variable to represent the number. Let's use x. ⇩

x=

Now we know that there is a sum of 8 and 160. Let's add them to each other ⇩

x= 8 + 160

Now we know that this will be multiplied. Let's put parentheses around the addition to symbolize this.

X= (8 + 160)

Finally multiply this by four, making your equation

x= 4 (8 + 160)

I don't know the options but from looking at the problem I'm assuming the answer is
x = 4 ( 8 + 160 )

8 0
3 years ago
ILL GIVE YOU BRAINLIEST (SMART MATH PERSON!)
MariettaO [177]

Answer:

A -  (2a+0)/2 ; (2b+0)/2  = ( a , b )

B -  (-2a+0)/2 ; (2b+0)/2  = ( - a, b )

C - (-2a+0)/2 ; ( -2b+0)/2  = ( - a, - b )

D - (2 a+0)/2 ; (-2b+0)/2  = ( a , - b )

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Given that lines a and b are parallel and that m∠6 = 65°, find m∠3.
    15·2 answers
  • An item is priced at $13.04. If the sales tax is 5%, what does the item cost including sales tax? If necessary, round to the nea
    7·2 answers
  • If two circles are congruent are the diameters the same lengh
    14·2 answers
  • I need help again thanks it's the picture ​
    8·1 answer
  • Please help.. with 6 & 15 ​
    8·1 answer
  • Find the midpoint of the segment with the following endpoints.<br> (-9, -5) and (-1, -9)
    14·1 answer
  • Given f(x) = 10-4x<br>find f (8)<br>​
    15·1 answer
  • Jack and Ben each have 1,000 chocolate bars if they each eat half, what do they have now?
    15·1 answer
  • What is this? Solve 4x+11=k for x
    8·1 answer
  • -2xy^2-4xy+6xy^2<br> please show work
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!