QUESTION 9 1 points Save Answer we flip a biased coin, with the probability of o

Question

QUESTION 9 1 points Save Answer we flip a biased coin, with the probability of observing heads p(B)=0.2. what is the probability of observing tails? QUESTION 10 1 points Save Answer We flip a biased coin 20 times, with the probability of heads p(H)-0.3. Determine the probability of observing "tails* 15 times. QUESTION 11 1 points Save Answer We are given a biased coin with the probability of heads on a single coin flip p(E-0.30. We fLp the coin 100 times. Use the results and code in Part 7 to compute the expected number of spikes L. What is it? QUESTION 12 1 points Save Answer We are given a biased coin with the probability of heads on a single coin flip p(H)=0.3. We flip the coin 100 times. Compute L (see previous question), and then use the function "poisspdf to determine the probability of observing heads: 30 times

Explanation / Answer

Ans:

9)Given that

P(Heads)=0.2

so,P(Tails)=1-0.2=0.8

10)Given that P(heads)=0.3

P(tails)=1-0.3=0.7

Binomail distribution:n=20,p=0.7

P(x=15)=20C15*0.715*0.35=0.1789

11)Poisson approximation:

mean=L=np=100*0.3=30

Expected number of heads=30

12)P(k=30)=poisson(30,30,false)=0.0726

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