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
Brrunno [24]
1 year ago
10

In the game of Keno, a player starts by selecting 20 numbers from the numbers 1 to 80. After the player makes his selections, 20

winning numbers are randomly selected from numbers 1 to 80. A win occurs if the player has correctly selected 3, 4, or 5 of the 20 winning numbers. (Round all answers to the nearest hundredth of a percent.) what is the percent chance of winning
Mathematics
1 answer:
DiKsa [7]1 year ago
5 0

The percentage of winning if 20 winning numbers are randomly selected from numbers 1 to 80 is 12.48%.

Given There are 80 numbers from which 20 numbers are selected randomly in a game of Keno by player and after selection of 20 winning numbers again 20 numbers are selected and player wins if the player has correctly selected 3,4,or 5 of the 20 winning numbers.

Probability is the chance of happening an event among all the events possible.

Probability of winning is calculated as under:

Probability=C(20,3)C(60,17)/C(80,20)

We have taken C(20,3) because player will win if 5 numbers are selected from 20 winning numbers.

We have taken C(60,17) because after selection of 20 numbers 60 numbers will left from 80 and after winning from 3 numbers 17  numbers left and from total 80, 20 numbers are taken.

=C(20,3)C(60,17)/C(80,20)

=(20!/3!17!  * 60!/17!43!)/80!/20!60!

=1140*387221678682300/35353161422121743200

=12.48%

Hence the probability of winning is 12.48%.

Learn more about probability at brainly.com/question/24756209

#SPJ4

You might be interested in
How would the expression x^3+64 be rewritten using sum off cubes
Mamont248 [21]
\bf \textit{difference of cubes}
\\ \quad \\
a^3+b^3 = (a+b)(a^2-ab+b^2)\qquad
(a+b)(a^2-ab+b^2)= a^3+b^3 \\ \quad \\
a^3-b^3 = (a-b)(a^2+ab+b^2)\qquad
(a-b)(a^2+ab+b^2)= a^3-b^3\\\\
-------------------------------\\\\
\boxed{64=4^3}\qquad x^3+64\implies x^3+4^3\implies (x+4)(x^2-x4+4^2)
\\\\\\
(x+4)(x^2-4x+16)
8 0
3 years ago
Read 2 more answers
The ordered pair (4, -8) is in the 4th quadrant if we took the opposite of the x- value and the opposite of the y-value, which q
harina [27]

9514 1404 393

Answer:

  2nd quadrant

Step-by-step explanation:

Reversing the signs of both coordinates reflects the point across the origin. The quadrant diagonally opposite quadrant 4 is quadrant 2.

_____

You recall that quadrants are numbered 1 to 4 counterclockwise, starting from upper right.

8 0
3 years ago
Answer quickly! It very urgent
ra1l [238]

Answer: Because the graphs of the two equations overlap each other

Step-by-step explanation:

Every point on the first line also satisfies the second equation.

This is the same as equivalent fractions

where 1/2 = 2/4 = 3/6 = 4/8

Graphing these on a number line would only show one dot.

6 0
3 years ago
Is 0.21 rational or irrational
Tanya [424]
A rational number can be made into a fraction
0.21 = 21/100....so it is rational
3 0
3 years ago
Read 2 more answers
What is the perimeter of 12cm and 18cm
NemiM [27]

Answer:

<em>4</em><em>0</em><em>cm</em><em>.</em>

Step-by-step explanation:

<em>4</em><em>0</em><em>cm</em><em> </em><em>is</em><em> </em><em>t</em><em>he</em><em> </em><em>answer </em><em>.</em>

3 0
3 years ago
Other questions:
  • Finals are​ over, and you are moving back home for the summer. You need to rent a truck to move your possessions from the colleg
    6·1 answer
  • What is the area of the kite? (This was all that was given)
    13·2 answers
  • 4+ (b+0) + =<br><br><br><br> i need help guys
    11·1 answer
  • In the expression 3x² + y − 5, which of the following choices is the exponent in the term 3x²?
    8·2 answers
  • Someone please help me
    14·2 answers
  • Last limits problem for today. I think it's mostly right but something isn't quite right here.
    7·1 answer
  • PLSSSSS HELPPPPPP!!!!!!
    14·1 answer
  • Can anyone please help me with this?
    13·2 answers
  • What are the like terms in this exspression 9a-3b + 4ab
    10·2 answers
  • Please help!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!