ginoo
ginoo ginoo
  • 10-09-2021
  • Mathematics
contestada

A coin is tossed 8 times. What is the probability of getting exactly 6
heads?

Respuesta :

caylus
caylus caylus
  • 10-09-2021

Answer:

Step-by-step explanation:

Using binomial distribution,

[tex]p=\left(\begin{array}{c} 8\\ 6\end{array}\right)*(\dfrac{1}{2} )^6*(\dfrac{1}{2} )^2\\\\\\=\dfrac{8*7*6*5*4*3}{6*5*4*3*2*1} *\dfrac{1}{256} =\dfrac{28}{256} =\dfrac{7}{64} \\\\[/tex]

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