Solutions for HW2
ENGR 3341, 2014 Fall
Possible points and solution for each problem:
2.1.1-2 pt
(a)-1 pt
(b)-1 pt
2.1.6-4 pt
(a)-2 pt
(b)-2 pt
2.2.4-3 pt
a) )-1 pt
P[F1]=0
b) )-1 pt
P[F4]=12/12*9/11*6/10*3/9=0.16
c) )-1 pt
P[F2]=4C2*3C2*3C2/12C4=0.11
2.3
Solutions for HW3
ENGR 3341, 2014 Fall
1.3
There are exactly 50 equally likely outcomes: s51 through s100. Each of these outcomes has
probability 0.02. Then,
P[cfw_s100] = 0.02
P[A] = P[cfw_s90, . . . , s100] = 11 0.02 = 0.22
P[F] = P[cfw_s51, . . . , s59
Solutions for HW4
ENGR 3341, 2014 Fall
3.2.4-4 pts
(a)-2 pts
P[H] = q + q(1-q) + q(1-q)2=0.14
Or
P[H] = 1-(1-q)3=0.14
(b)-2pts
q(1 q) n 1 n 1, 2
PN (n) (1 q) n 1 n 3
0
otherwise
3.2.8-4 pts
The probability that a caller fails to get through in three tries
Column Statistics
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EE 334.001 Midterm
Problem 1.
a. (10) Suppose the probability that the daily train from Ft. Worth to Lubbock will arrive late is .7,
independent of the day. What is the probability that the train will arrive on time at least 5 days
of the week?
b. (10) Su
Reflection #5
Yu Chi Huang (1002833133)
There are two presentation topics that attracted me the most:
Group 1 talked about TTC token holder, which resolved the problem of the
storage of those small coins in pockets or wallets. The design is to place token
Reflection #5
Yu Chi Huang (1002833133)
In the case of Nestles refrigerated pizza, we take a look at the process of
conducting a qualitative research. Unlike in previous cases, where quantitative
research is mainly used, this case illustrates how the qual
Questionnaire design:
5-10 min to fill out
grab people on the street: shorter, around 5 min
give good opportunity to respond
too simple -> not helpful
question could guide interviewees mind, and thus cannot figure out how
they really think
when people are
1.Can we use pastas calculation method to pizza (same process)?
2.too expensive (compare to frozen pizza) and does not taste good as takeout
pizza
-> substitutes
3.if you know the baise, you deal with it, no worry. unknown baise
4.behavior is different fr
Reflection #7
Yu Chi Huang (1002833133)
Reflection: Week7
Something different and funny happened in this weeks class. We played a little
trick to the professor by leaving the classroom. The case main point was that
light drinkers have beer but was not for
Reflection#8
Yu Chi Huang (1002833133)
Started from the second half of this course, we go into the quantitative world.
Professor told us some important points of a good questionnaire design. The
survey is better to be done within 10 minutes as people migh
Reflection #4
Yu Chi Huang (1002833133)
In the beginning of class, professor presented a mock focus group, in which the
representatives are us. Although it is not a perfect focus group as the number of
participants is too much and people involved did not
Reflection #9
Yu Chi Huang (1002833133)
The professor mentioned some key points on our final market research project at
the beginning of class, including questionnaire design and the use of scale. In the
second half of this course, we discussed more on qu
Problem 2.2.3 Solution
{3) We must choose r: to make the FIVEF of V sum to one.
4
ZP1-'(v}=6(12 +22 + 32 + 42) = 30: =1
v=l
Hence c = 1f30.
(13-) Let U = {ugly = 1.2. ...} so that
P[VEU]P (1H? {4} 1 +42 I?
_ I F _30 30 _ so
(c) The probability that