18% of biscuits made by a baker are chocolate chip cookies. 9 biscuits are selected at random. a) Assuming a binomial distribution for X, the number of chocolate chip cookies, write down the values of n and p. X~ bin(n,p) n = p= Find E[X] the expected number of chocolate chip cookies in our sample: E[X] = Find the standard deviation for the number of chocolate chip cookies in ou sample: Standard deviation = (to 3 decimal places).
18% of biscuits made by a baker are chocolate chip cookies. 9 biscuits are selected at random. a) Assuming a binomial distribution for X, the number of chocolate chip cookies, write down the values of n and p. X~ bin(n,p) n = p= Find E[X] the expected number of chocolate chip cookies in our sample: E[X] = Find the standard deviation for the number of chocolate chip cookies in ou sample: Standard deviation = (to 3 decimal places).
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
![18% of biscuits made by a baker are chocolate chip cookies.
9 biscuits are selected at random.
a)
Assuming a binomial distribution for X, the number of chocolate chip
cookies, write down the values of n and p.
X~ bin(n, p)
n =
p=
Find E[X] the expected number of chocolate chip cookies in our sample:
E[X] =
Find the standard deviation for the number of chocolate chip cookies in our
sample:
Standard deviation =
(to 3 decimal places).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3afc900a-c718-4e75-9668-b877cac7e5e5%2F198f489a-8d66-46ac-a7b7-f0985425b3f1%2F3tt2jg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:18% of biscuits made by a baker are chocolate chip cookies.
9 biscuits are selected at random.
a)
Assuming a binomial distribution for X, the number of chocolate chip
cookies, write down the values of n and p.
X~ bin(n, p)
n =
p=
Find E[X] the expected number of chocolate chip cookies in our sample:
E[X] =
Find the standard deviation for the number of chocolate chip cookies in our
sample:
Standard deviation =
(to 3 decimal places).
![b)
Find the probability that our selection contains exactly 4 chocolate chip
cookies.
P(X= 4) =
(to 3 decimal places).
Find the probability that our selection contains no more than 2 chocolate
chip cookies.
Probability=
* (to 3 decimal places).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3afc900a-c718-4e75-9668-b877cac7e5e5%2F198f489a-8d66-46ac-a7b7-f0985425b3f1%2Fjew05mb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:b)
Find the probability that our selection contains exactly 4 chocolate chip
cookies.
P(X= 4) =
(to 3 decimal places).
Find the probability that our selection contains no more than 2 chocolate
chip cookies.
Probability=
* (to 3 decimal places).
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the standered deviation is wrong can you check that?
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