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
exis [7]
3 years ago
9

Cards from an ordinary deck of 52 playing cards are turned face up one at a time. If the 1st card is an ace, or the 2nd a two, o

r the 3rd a three, or . . . , or the 13th a king, or the 14th an ace, or the 15th a two, and so on, we say that a match occurs. Compute the expected number of matches that occur.

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
7 0

Answer:

Expected number of matches that occur = 4 matches

Step-by-step explanation:

First of all, let X_i be the event that when we turn over card i if it matches the required cards face.

Thus, for example X_1 is the event that turning over one card results in an ace while X_2 is the event that turning over second card reveals a deuce.

The number of matched cards "N" is given by the sum of this indicator random variable as shown in the attached file;

You might be interested in
900 + 50 + 4 + 0.7<br> Please help me
Ann [662]

Answer:

954.7

Step-by-step explanation:

Hope that this is helpful.

Have a nice day.

4 0
3 years ago
Darren wins a coupon for $4 off the lunch special for each of five days he pays $75 for his 5 lunch specials write and solve an
Valentin [98]

The original price for one lunch special is $19.

<em><u>Explanation</u></em>

The original price for one lunch special is  'p'  dollar.

He wins a coupon for $4 off for each of five days. That means , <u>he needs to pay (p-4) dollar each day</u>.

So, the total amount needed to pay for 5 days = 5(p-4) dollar

Given that, <u>he pays $75 for his 5 lunch specials</u>. So the equation will be.....

5(p-4)= 75\\ \\ 5p-20=75\\ \\ 5p= 75+20\\ \\ 5p= 95\\ \\ p=\frac{95}{5}=19

So, the original price for one lunch special is $19.

8 0
3 years ago
I need help urgent for quiz ​
tino4ka555 [31]

Answer:

um, u gotta ask a question

4 0
3 years ago
Which pair of angles are supplementary? ​
PolarNik [594]

Answer: H

Step-by-step explanation:

Supplementary angles just mean they add up to 180 degrees. 180 degrees means that when the two angles are put together one of each of their sides will form a straight line.

6 0
3 years ago
MAX PONITS AND BRAINLIEST
vova2212 [387]

Answer:

Graph A is postive and Linear! I know this because I was in algebra one!

Step-by-step explanation:

Graph B and C are Negative and Graph D is not Linear!!!!!

7 0
3 years ago
Read 2 more answers
Other questions:
  • The sum of Alan’s age and Bob’s age is 40.
    12·1 answer
  • ​(5 – 6i) – (3 – 2i) solve the equation.
    15·1 answer
  • If 2 objects cost 40 dollars how much would 7 objets cost?
    11·2 answers
  • Paws at play made a total of $1234 grooming 22 dogs. Paws at Play charges $43 to groom each small dog and $75 for each large dog
    6·1 answer
  • True or False? Whole Numbers (W) are a subset of Integers (Z)<br> O True<br> False
    8·1 answer
  • What is 1/3 plus 1/4
    6·2 answers
  • The solutions to the equation 2x^2+x-1=2 are x=-3/2 or x= blank
    14·1 answer
  • What system of inequalities is shown in the graph?
    14·1 answer
  • 6. Which is a not a true statement about the figures shown below?<br> this is do soon thx
    5·2 answers
  • Help anyone please please please
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!