Get a free quote.
Check the website
for updates.
for updates.
Receive your completed assignment.
Easy as ABC! Just provide us with clear instructions and wait for the completed assignment.

Answer on Statistics and Probability Question for mar
Question #5958
find the probability distribution for the number of fails that occur when 4 coins are tossed?
Expert's answer
Answer
Let n be the number of fails.Here are all possible results:
0 fails:
0 0 0 0
(1 possibility)
1 fail:
1 0 0 0
0 1 0 0
0 0 1 0
0 0 0 1
(4 possibilities)
2 fails:
1 1 0 0
1 0 1 0
1 0 0 1
0 1 1 0
0 1 0 1
0 0 1 1
(6 possibilities)
3 fails:
0 1 1 1
1 0 1 1
1 1 0 1
1 1 1 0
(4 possibilities)
4 fails:
1 1 1 1
(1 possibility)
Wee see that there are 1+4+6+4+1 = 16 possible rusults. So,
P(n=0) = 1/16,
P(n=1) = 4/16 = 1/4,
P(n=2) = 6/16 = 3/8,
P(n=3) = 1/4,
P(n=4) = 1/16.
Ask Your question
Link to us
Share with friends
More subjects:
Comments
Leave a comment