Question

!!!!!!!!!!!!!which answe

Answer 1

Question: "A coin is tossed 8 times. Find the probability P(of exactly 6 occurrences of tails)"

Answer:
When we toss a coin we have 50% of probability to get a tail and 50% probability to get heads. 

If we toss the coin 8 times, in order to find P(T=6), we need to use the binomial distribution:
$P = \frac{n!}{k!(n-k)!} p^{k} (1-p)^{n-k}$
where:
n = total number of events
k = number of successes we want
p = probability of success

Therefore:
$P(T=6) = \frac{8!}{6!(2)!} 0.5^{6} (1-0.5)^{2}$  
= 28 · 0.015625 · 0.25
= 0.109375

Hence, the probability of getting 6 tails out of 8 tosses is D) 10.94%.

Answer 2

Answer:

I think it's D

Step-by-step explanation: