ballislifeqw8724 ballislifeqw8724
  • 23-03-2021
  • Mathematics
contestada

An unfair coin with a probability of tails as 0.55 is tossed 8 times. Find the probability that a tail shows up more than 2 times.

Respuesta :

fichoh
fichoh fichoh
  • 25-03-2021

Answer:

0.9115

Step-by-step explanation:

Using a binomial probability function :

P(x =x) = nCx * p^x * (1 - p)^(n - r)

Probability of success, p = 0.55

1 - p = 1 - 0.55 = 0.45

n = 8

x = 2

P(x > 2 ) = p(x = 3) + p(x = 4) + p(x = 5) + p(x = 6) + p(x = 7) + p(x =8)

To save computation time, we could use the binomial probability calculator :

P(x > 2 ) = 0.9115

Answer Link

Otras preguntas

PLLLLLLLEEEEEEEEEEEEEEASE ANSWER FAST MATH GENIUSES!!!!!!! A coffee company wants a new flavor of Cajun coffee. How many pounds of coffee worth $ 7 a pound shou
Is this correct or not
How does organisms store energy
How do you attach an image in brainly? Like if you have a question, but people answering it need to see a picture of what you're asking. Step by step instructi
The relative location of Ethiopia changed when _____. it lost ocean access it suffered a natural disaster it invaded another country it acquired a colony
Complete the passage to distinguish between mechanical and electromagnetic waves. Waves that move through matter only are called waves. Waves that move thro
what are three elements in the periodic table
Organisms that get chemical energy from carbon sources found in food are called
What are American places Spain established? San Diego Ohio Los Angeles San Antonio Chicago Santa Fe New York San Francisco Albuquerque
what object in the solar system has a composition similar to that of the gas giants?