tushantmathur tushantmathur
  • 25-06-2017
  • Mathematics
contestada

Alyssa flips a fair,two-sided coin four times.What is the probability that the coin lands with heads facing up exactly three times?

Respuesta :

mathmate
mathmate mathmate
  • 25-06-2017
Fair coin means P(heads) = 1/2 for each flip.
The three flips are independent, so multiplication rule applies.
P(head,head,head)=(1/2)(1/2)(1/2)=1/8
Answer Link

Otras preguntas

Is it better to increase or decrease the light when changing to a higher magnification?
7 1/2 9 what does it equal I am having a little bit of trouble
Average of 15,25,35,45,0
How did the fugitive slave act of 1950 different from the fugitive slave act of 1793
Witch fraction is greater then 2/5
How many moles of NH3 can be produced from 24.0 mol of H2 and excess N2?
Where should you look to quickly find factual information on the causes of the American Civil War?
The population p, in millions, of a certain country can be calculated by p=0.83t54, where t is the time in years, and t = 0 represents the year 2015. find the e
A problem states: "There are 5 more girls than boys at the party. There are 27 children at the party in all. How many boys are there at the party?" Let b repre
What will one see during an annular eclipse?