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
Irina-Kira [14]
3 years ago
5

A fair coin is flipped 3 times. It lands facing heads up 2 out of 3 times.

Mathematics
1 answer:
irina [24]3 years ago
7 0

Answer:

asssnkkkffffffkkkii

You might be interested in
Five men and 5 women are ranked according to their scores on an examination. Assume that no two scores are alike and all 10! pos
m_a_m_a [10]

Answer:

P(X=1)=\frac{1}{2}\\P(X=2)=\frac{5}{18}\\P(X=3)=\frac{5}{36}\\P(X=4)=\frac{5}{84}\\P(X=5)=\frac{5}{252}\\P(X=6)=\frac{1}{252} \\P(X>6)=0

Step-by-step explanation:

Let's define the following event :

X : ''Highest ranking achieved by a woman''

There are five men and five women so the lowest ranking possible is 6, this means that all five men achieved a better ranking than all five women.

In terms of the variable :

X can assume the following values :

X=1\\X=2\\X=3\\X=4\\X=5\\X=6

⇒ P(X=7)=0\\P(X=8)=0\\P(X=9)=0\\P(X=10)=0

⇒ P(X>6)=0

Now let's calculate the probability function for X

P(X=1)=\frac{(5)(9!)}{(10!)}=0.5=\frac{1}{2}

We write on the denominator the total ways to arrange ten different persons in a line. This number is 10!

On the numerator we write the total cases in which the first person is a woman ⇒ (5).(9!)

Because they are five different women and when you pick one of then they are 9! ways to arrange the 9 remaining persons

Following this logic, we continue calculating the probability function :

P(X=2)=\frac{(5)(5)(8!)}{(10!)}=\frac{5}{18}

Again : Five different ways to choose between the five men in the first position.Then, 5 different ways to choose between the five women.And finally, 8! ways to arrange the remaining persons

P(X=3)=\frac{(5)(4)(5)(7!)}{(10!)}=\frac{5}{36}

Here we have : five different ways to choose between five men.Four different ways to choose between the four remaining men.Five different ways to choose between the five women for the third position and finally 7! ways to arrange the remaining persons.

P(X=4)=\frac{(5)(4)(3)(5)(6!)}{(10!)}=\frac{5}{84}

P(X=5)=\frac{(5)(4)(3)(2)(5)(5!)}{(10!)}=\frac{5}{252}

P(X=6)=\frac{(5)(4)(3)(2)(1)(5)(4!)}{(10!)}=\frac{1}{252}

3 0
3 years ago
The team won 5 out of 8 games if the team played 32 games how many did they win
Rus_ich [418]

Answer:

20

Step-by-step explanation:

32/8 = 4

4 x 5 = 20

:)

7 0
3 years ago
Someone please help me!!
Phoenix [80]

Answer:

x=6

UV=40

WV=40

UW=30

Step-by-step explanation:

GIVEN UV=WV

6X+4=40

X=6

NOW PUT X=6 in WV AND UW

6 0
3 years ago
The water tank in the diagram is in the shape of an inverted right circular cone. The radius of its base is 16 feet, and its hei
Angelina_Jolie [31]

Answer:

6433.98 ft

Step-by-step explanation:

In order to find what 25% of the tank's capacity is, we know to know the full capacity of the tank then take 25% of that.  The volume formula for a right circular cone is

V=\frac{1}{3}\pi r^2h

We have all the values we need for that:

V=\frac{1}{3}\pi (16)^2(96)

This gives us a volume of 25735.93 cubic feet total.

25% of that:

.25 × 25735.93 = 6433.98 ft

4 0
2 years ago
Read 2 more answers
Jasmine baby-sits for $8.25 per hour. If she baby-sits for 12 hours in one weekend, how much money will she earn? Write your ans
forsale [732]

Answer:

Step-by-step explanation:

8.25*12= $99.00

7 0
2 years ago
Other questions:
  • A soccer team played 160 games and won 65 percent of them. How many games did the team win?
    7·2 answers
  • PLEASE ANSWER THIS QUESTION PICTURE SHOWN
    15·2 answers
  • HELP ME ASAP!!In ABC, what is the measure of angle B? a.46 b.48 c.70 d.92
    8·1 answer
  • The South prospered, but its wealth was very unequally distributed. Upward social mobility did not exist for the millions of sla
    7·1 answer
  • 5. Ryan Just bought 10 gallons of gasoline, the amount of fuel used for the last 355 miles of driving. Being a curious sort , Ry
    13·1 answer
  • I asked this question before but no one helped me. does anyone know? ​
    11·1 answer
  • Classify each number below as a rational number or an irrational number.
    9·1 answer
  • Do it for me with steps
    12·2 answers
  • Can someone please help me with this question, I have multiple of them and have no idea where to start. If you can help me with
    9·1 answer
  • What is the area of this figure? ​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!