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
11Alexandr11 [23.1K]
1 year ago
8

A fair coin is flipped seven times. what is the probability of the coin landing tails up at least two times?

Mathematics
1 answer:
GaryK [48]1 year ago
7 0

The required probability of the coin landing tails up at least two times is 15/16.

Given that,
A fair coin is flipped seven times. what is the probability of the coin landing tails up at least two times is to be determined.

<h3>What is probability?</h3>

Probability can be defined as the ratio of favorable outcomes to the total number of events.

Here,
In the given question,
let's approach inverse operation,
The probability of all tails  = 1 / 2^7 because there is only one way to flip these coins and get no heads.
The probability of getting 1 head = 7 /2^7
Adding both the probability = 8 / 2^7
Probability of the coin landing tails up at least two times = 1 - 8/2^7
                                                                                     = 1 - 8 / 128
                                                                                     = 120 / 128
                                                                                     = 15 / 16

Thus, the required probability of the coin landing tails up at least two times is 15/16.

Learn more about probability here:

brainly.com/question/14290572

#SPJ2

You might be interested in
What is 2 x + 2y equals negative 6 coordinate
Andrews [41]
This is solved for all values of
y = -x-3. (Assuming you meant that 2x+2y=-6).
3 0
3 years ago
Which expression is equivalent to -3(4c-2) -2c
sergeinik [125]

Answer:

-3(4c-2) -2c = -14c+6

Step-by-step explanation:

We need to find the equivalent expression for -3(4c-2) -2c.

First we open the brackets as follows :

-3(4c-2) -2c

= -12c+6-2c

=-12c-2c+6

=-14c+6

So, the equivalent expression is -14c+6.

7 0
3 years ago
Solve the follow 3(2z-4)=60
ira [324]
6z - 4 = 60
6z = 64
z = 10.66666666666666 (repeating)
6 0
3 years ago
Read 2 more answers
What magic trick does mr. utterbunk perform every evening
Kruka [31]
You have to finish writing the question for someone to answer
4 0
3 years ago
Which of the the following is equivalent to 2 to the negative 3rd power? 1.-6 2.1/6 3.-8 4.1/8
Agata [3.3K]

hii the answser is 1. -6 .

7 0
3 years ago
Other questions:
  • If f(x) = 5x, what is f-1x
    5·1 answer
  • The vertex of a parabola is (-1.5, -12.5), and its y-intercept is (0, -8).
    10·2 answers
  • Please help me i beg of u due today
    10·1 answer
  • V(t) = 1 + 2sin(t^2/2) solve for t
    11·1 answer
  • Choose the best definition for the following phrase: combining like terms (1 point)
    8·1 answer
  • Find ten rational numbers between -1 by 5 and 1 by 2 ​
    11·1 answer
  • Marla helped her mother and father fold invitations and put them into envelopes. If Marla can fill 36 envelopes in 30 minutes, h
    10·2 answers
  • What is the distance between these numbers TOGETHER
    13·1 answer
  • Solve for k.<br> k/7 + -31= -34
    12·1 answer
  • 7. On Saturday, a craft store had 150 visitors, and 80% of the visitors made a purchase. Of the customers who made a purchase, 3
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!