12. (4 points) When Jon Snow was in the Wall he had some free time and flipped a
ID: 3336926 • Letter: 1
Question
12. (4 points) When Jon Snow was in the Wall he had some free time and flipped a coin one hundred times and he got the following H,H,H,T,H,T,THHHTT,THT,H,TT,T,H H,H,H,T,H,T,HH,T,HLT,H,T,H,H,H,H,HT HH,THT,T,TH,HT,HTH,TTTHH,H,H H,THT,H,T,T,T,HHT,HT,HT,HTH,TH TTH,T,HHT,HTH,HHHTHTHTH What is the theoretical probability of getting tails? 13. Given the table of probabilities for the random variable x. x15|10|15 | 20 P(x) -0.10 0.40 0.50 0.10 A) (2 Points) Does the table form a probability distribution? B) (4 Points) If it is a probability distribution find the mean and standard deviation.Explanation / Answer
Solution:-
13)
A) No ; each P(x) must be greater than or equal to zero and less than or equal to 1.
B) P(X) must have all values greater than zero.
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