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
prisoha [69]
3 years ago
10

Three fair coins are tossed. what is the probability that they are all heads if at least one coin is head,

Mathematics
2 answers:
Olegator [25]3 years ago
4 0
There is your answer hope it helps
\frac{1}{3}
EleoNora [17]3 years ago
3 0

Answer:

1/7

Step-by-step explanation:

There are 8 sample points in the sample space. The sample space is

S = {HHH, HHT, HTH, THH, TTH, THT, HTT, TTT}. The event at least one coin is head is compoused

by seven sample points: {HHH, HHT, HTH, THH, TTH, THT, HTT}, then, to obtain the probability of three heads given that we know that at least one coin is head, we should regard the "new sample space" reduced, i.e., we should consider the set with seven sample points as the new sample space. In the new sample space, just one point corresponds to three heads. Therefore the probability we are seeking is 1 out of 7 or 1/7.

You might be interested in
4 friends are eating personal pan pizzas. Jane has 3/4, Jill had 3/4, Cindy has 2/3 left and Jeff has 2/5 left. Who has the most
Hunter-Best [27]
Jeff because it was out of 5 and he only had two so he had three more to go. Jane had 1 more to go. Jill had 1 more to go. Cindy had 1 more to go and Jeff has 3 more to go.
5 0
3 years ago
HELP PLEASE<br> Find the value of y. Round to<br> the nearest tenth.<br> у<br> 42°<br> 85°<br> 31
MaRussiya [10]
31
Explanation
Nothing
6 0
2 years ago
Which graph represents the statement "y is less than 5 more than the product of x and -3?"
Leya [2.2K]
The answer to the question is J.
4 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%283%5Csqrt%7B6%7D%29%283%5Csqrt%7B10%7D" id="TexFormula1" title="(3\sqrt{6})(3\sqrt{10}" alt=
mote1985 [20]
18sqrt(15)

This has to be at least 20 characters long so yeaaaa
6 0
3 years ago
So this is for my geometry I'm trying to work on my review and I'm hoping that maybe one of you guys out here could help me with
alukav5142 [94]
Sorry it’s not that neat but I think the answer would be in the exact surd form root 233

7 0
3 years ago
Other questions:
  • Skaters complete one lap around a park that has the shape of a regular Pentagon.
    15·2 answers
  • Which statement show equivalent expressions? PLEASE HELP ME ASAP
    7·2 answers
  • What are the factors of 36 and 90?
    15·1 answer
  • Two joggers run 12 miles north and then 5 miles west. What is the shortest distance they must travel to return to their starting
    9·1 answer
  • Solve for x mathematics
    11·1 answer
  • It takes 343 inches³ of water to fill an empty cube. If the sides of the cube were tripled, how much water would be needed to fi
    9·1 answer
  • Hi <br> i need help <br> please
    9·2 answers
  • My Math Integers. I'm stuck on this problem.. Someone please help? (-4)(-9) =
    14·2 answers
  • 1. -15(-9)=
    8·2 answers
  • What are the factors of the trinomial?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!